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Dulles International Airport to Harry Reid International Airport flight

Explore the cheapest one-way and round-trip flights from Dulles International Airport to Harry Reid International Airport over the next 90 days, with one-way fares from THB 3,340 and round-trip from THB 5,210. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        IAD 6:00 AM
        5h 4m
        Nonstop
        LAS 8:04 AM
        Washington D.C. - Las Vegas | Tue, Oct 20 | Frontier Airlines
        LAS 10:43 PM
        4h 37m
        Nonstop
        IAD 6:20 AM
        Las Vegas - Washington D.C. | Sat, Oct 24 | Frontier Airlines
        THB 5,210 THB 9,950
        48% off
        48% off
        THB 9,950 THB 5,210
      • IAD 6:00 AM
        5h 4m
        Nonstop
        LAS 8:04 AM
        Washington D.C. - Las Vegas | Thu, Oct 22 | Frontier Airlines
        LAS 10:43 PM
        4h 37m
        Nonstop
        IAD 6:20 AM
        Las Vegas - Washington D.C. | Sat, Oct 24 | Frontier Airlines
        THB 5,770 THB 9,950
        42% off
        42% off
        THB 9,950 THB 5,770
      • IAD 1:09 PM
        5h 22m
        Nonstop
        LAS 3:31 PM
        Washington D.C. - Las Vegas | Tue, Nov 24 | Frontier Airlines
        LAS 9:47 PM
        4h 23m
        Nonstop
        IAD 5:10 AM
        Las Vegas - Washington D.C. | Thu, Nov 26 | Frontier Airlines
        THB 7,140 THB 9,950
        28% off
        28% off
        THB 9,950 THB 7,140
      • IAD 12:06 PM
        11h 20m
        1 stop
        LAS 8:26 PM
        Washington D.C. - Las Vegas | Wed, Dec 2 | Frontier Airlines
        LAS 11:43 PM
        8h 28m
        1 stop
        IAD 11:11 AM
        Las Vegas - Washington D.C. | Tue, Dec 8 | Frontier Airlines
        THB 5,290
        47% off
        THB 9,950 THB 5,290
      • IAD 1:38 PM
        13h 14m
        1 stop
        LAS 11:52 PM
        Washington D.C. - Las Vegas | Sat, Oct 17 | Frontier Airlines
        LAS 10:46 PM
        4h 34m
        Nonstop
        IAD 6:20 AM
        Las Vegas - Washington D.C. | Thu, Oct 22 | Frontier Airlines
        THB 5,670
        43% off
        THB 9,950 THB 5,670
      • IAD 12:31 PM
        13h 58m
        1 stop
        LAS 11:29 PM
        Washington D.C. - Las Vegas | Sat, Oct 31 | Frontier Airlines
        LAS 12:38 AM
        7h 58m
        1 stop
        IAD 11:36 AM
        Las Vegas - Washington D.C. | Thu, Nov 5 | Frontier Airlines
        THB 6,280
        37% off
        THB 9,950 THB 6,280
      • IAD 3:03 PM
        9h 52m
        1 stop
        LAS 9:55 PM
        Washington D.C. - Las Vegas | Wed, Oct 28 | Delta Air Lines
        LAS 12:38 AM
        7h 58m
        1 stop
        IAD 11:36 AM
        Las Vegas - Washington D.C. | Sat, Oct 31 | Frontier Airlines
        THB 6,300
        37% off
        THB 9,950 THB 6,300
      • IAD 12:35 PM
        10h 2m
        1 stop
        LAS 7:37 PM
        Washington D.C. - Las Vegas | Wed, Dec 2 | Delta Air Lines
        LAS 11:43 PM
        8h 28m
        1 stop
        IAD 11:11 AM
        Las Vegas - Washington D.C. | Tue, Dec 8 | Frontier Airlines
        THB 6,390
        36% off
        THB 9,950 THB 6,390
      • IAD 6:00 AM
        5h 4m
        Nonstop
        LAS 8:04 AM
        Washington D.C. - Las Vegas | Sat, Oct 24 | Frontier Airlines
        LAS 10:29 PM
        8h 30m
        1 stop
        DCA 9:59 AM
        Las Vegas - Washington D.C. | Tue, Oct 27 | Jetblue Airways
        THB 6,460
        35% off
        THB 9,950 THB 6,460
      • IAD 6:07 PM
        8h 1m
        1 stop
        LAS 11:08 PM
        Washington D.C. - Las Vegas | Tue, Nov 3 | Frontier Airlines
        LAS 11:56 AM
        6h 54m
        1 stop
        DCA 9:50 PM
        Las Vegas - Washington D.C. | Fri, Nov 6 | Frontier Airlines
        THB 7,020
        28% off
        THB 9,950 THB 7,020
      • IAD 9:38 AM
        11h 31m
        1 stop
        LAS 6:09 PM
        Washington D.C. - Las Vegas | Sat, Oct 31 | Alaska Airlines
        LAS 7:20 AM
        6h 52m
        1 stop
        IAD 5:12 PM
        Las Vegas - Washington D.C. | Wed, Nov 4 | Frontier Airlines
        THB 7,120
        28% off
        THB 9,950 THB 7,120
      • IAD 1:09 PM
        5h 22m
        Nonstop
        LAS 3:31 PM
        Washington D.C. - Las Vegas | Fri, Nov 27 | Frontier Airlines
        LAS 11:43 PM
        8h 28m
        1 stop
        IAD 11:11 AM
        Las Vegas - Washington D.C. | Tue, Dec 1 | Frontier Airlines
        THB 7,260
        27% off
        THB 9,950 THB 7,260
      • WAS 1:00 PM
        17h 25m
        1 stop
        LAS 2:00 PM
        Washington D.C. - Las Vegas | Tue, Oct 13 | Normal Airline
        LAS 3:00 PM
        6h
        Nonstop
        WAS 4:00 PM
        Las Vegas - Washington D.C. | Thu, Oct 15 | Normal Airline
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      • Cheapest nonstop
        IAD 1:09 PM
        5h 22m
        Nonstop
        LAS 3:31 PM
        Washington D.C. - Las Vegas | Mon, Nov 23 | Frontier Airlines
        THB 4,180 THB 5,870
        28% off
        28% off
        THB 5,870 THB 4,180
      • IAD 6:00 AM
        5h 4m
        Nonstop
        LAS 8:04 AM
        Washington D.C. - Las Vegas | Wed, Oct 14 | Frontier Airlines
        THB 4,280 THB 5,870
        27% off
        27% off
        THB 5,870 THB 4,280
      • IAD 12:06 PM
        11h 20m
        1 stop
        LAS 8:26 PM
        Washington D.C. - Las Vegas | Wed, Dec 2 | Frontier Airlines
        THB 3,340 THB 5,870
        43% off
        43% off
        THB 5,870 THB 3,340
      • IAD 9:06 PM
        17h 57m
        1 stop
        LAS 11:03 AM
        Washington D.C. - Las Vegas | Sat, Oct 31 | Frontier Airlines
        THB 3,460
        41% off
        THB 5,870 THB 3,460
      • IAD 8:05 AM
        18h 3m
        1 stop
        LAS 11:08 PM
        Washington D.C. - Las Vegas | Tue, Nov 10 | Frontier Airlines
        THB 3,490
        41% off
        THB 5,870 THB 3,490
      • IAD 9:06 PM
        16h 57m
        1 stop
        LAS 11:03 AM
        Washington D.C. - Las Vegas | Sat, Nov 7 | Frontier Airlines
        THB 3,490
        41% off
        THB 5,870 THB 3,490
      • IAD 6:46 PM
        8h 9m
        1 stop
        LAS 11:55 PM
        Washington D.C. - Las Vegas | Mon, Nov 16 | Alaska Airlines
        THB 3,570
        39% off
        THB 5,870 THB 3,570
      • IAD 6:07 PM
        8h 1m
        1 stop
        LAS 11:08 PM
        Washington D.C. - Las Vegas | Wed, Nov 4 | Frontier Airlines
        THB 3,790
        35% off
        THB 5,870 THB 3,790
      • IAD 6:42 PM
        19h 39m
        1 stop
        LAS 11:21 AM
        Washington D.C. - Las Vegas | Mon, Dec 7 | Frontier Airlines
        THB 3,950
        33% off
        THB 5,870 THB 3,950
      • IAD 11:16 AM
        26h 17m
        1 stop
        LAS 10:33 AM
        Washington D.C. - Las Vegas | Thu, Nov 12 | Frontier Airlines
        THB 3,970
        32% off
        THB 5,870 THB 3,970
      • IAD 7:02 AM
        12h 9m
        1 stop
        LAS 4:11 PM
        Washington D.C. - Las Vegas | Sat, Oct 31 | Alaska Airlines
        THB 4,010
        32% off
        THB 5,870 THB 4,010
      • IAD 12:30 PM
        10h 16m
        1 stop
        LAS 7:46 PM
        Washington D.C. - Las Vegas | Tue, Dec 8 | Delta Air Lines
        THB 4,030
        31% off
        THB 5,870 THB 4,030
      • IAD 7:50 AM
        18h 2m
        1 stop
        LAS 10:52 PM
        Washington D.C. - Las Vegas | Mon, Oct 26 | Frontier Airlines
        THB 4,040
        31% off
        THB 5,870 THB 4,040
      • IAD 4:00 PM
        9h 55m
        1 stop
        LAS 10:55 PM
        Washington D.C. - Las Vegas | Fri, Nov 13 | Delta Air Lines
        THB 4,040
        31% off
        THB 5,870 THB 4,040
      • WAS 1:00 PM
        17h 25m
        1 stop
        LAS 2:00 PM
        Washington D.C. - Las Vegas | Tue, Oct 13 | Normal Airline
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Flight fares from Dulles International Airport to Harry Reid International Airport are based on average airline prices for the next 3 months, according to Trip.com’s latest data.

Trip.com Price Insights: Flights from Dulles International Airport to Harry Reid International Airport

Which month has the lowest one-way flight price from Dulles International Airport to Harry Reid International Airport?

The data is based on the average one-way flight prices on Trip.com for flights from Dulles International Airport to Harry Reid International Airport across different months over the past 12 months.

Based on Trip.com data from the past 12 months, if you’re looking for low one-way flight fares from Dulles International Airport to Harry Reid International Airport, the best time to book is in February, with an average price of THB 4,390. Try to avoid March, when prices are highest, averaging around THB 18,770.

THB 18,770
THB 11,580
THB 4,390
0
    Cheapest
  • THB 12,480
    Oct
  • THB 8,390
    Nov
  • THB 10,550
    Dec
  • THB 8,550
    Jan
  • THB 4,390
    Feb
  • THB 18,770
    Mar
  • THB 14,540
    Apr
  • THB 7,240
    May
  • THB 8,610
    Jun
  • THB 8,300
    Jul
  • THB 5,650
    Aug
  • THB 6,930
    Sep

What is the cheapest day of the week to fly from Dulles International Airport to Harry Reid International Airport?

The data is based on the average flight prices on Trip.com from Dulles International Airport to Harry Reid International Airport across different days of the week over the past 12 months.

Based on Trip.com data from the past 12 months, the cheapest day to depart from Dulles International Airport to Harry Reid International Airport is usually Wednesday, with average fares typically lower than other days. Try to avoid departing on Sunday, as prices are usually the highest on that day.

THB 10,590
THB 8,625
THB 6,660
THB 4,695
    Cheapest
  • THB 8,100
    Mon
  • THB 7,740
    Tue
  • THB 6,660
    Wed
  • THB 9,490
    Thu
  • THB 9,240
    Fri
  • THB 7,580
    Sat
  • THB 10,590
    Sun

Which airline offers the cheapest flights from Dulles International Airport to Harry Reid International Airport?

The cheapest airline flying from Dulles International Airport to Harry Reid International Airport is Frontier Airlines (from THB 2,790) among 9 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From THB 2,790
Alaska Airlines
From THB 3,570
Delta Air Lines
From THB 4,030
Allegiant Air
From THB 4,670
United Airlines
From THB 5,860
American Airlines
From THB 6,090
Sun Country Airlines
From THB 6,270
Air Canada
From THB 7,780
Air Transat
From THB 8,340

Find more flights and airlines

What is the flight schedule from Dulles International Airport to Harry Reid International Airport?

Check the schedule for flights from Washington D.C. to Las Vegas and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. F94277

    Dulles International Airport

    6:30 AM

    IAD

    4h 57m

    8:27 AM

    LAS

    S M T W T F S
    Search

  2. DL1657

    Dulles International Airport

    6:12 PM

    IAD

    2h

    Nonstop

    8:12 PM

    ATL

    - M T - - F -
    Search

  3. DL834

    Hartsfield–Jackson Atlanta International Airport

    9:52 PM

    ATL

    4h 32m

    Nonstop

    11:24 PM

    LAS

    S M T W T F S

  4. DL1444

    Dulles International Airport

    12:29 PM

    IAD

    1h 49m

    Nonstop

    2:18 PM

    ATL

    S M T W T - S
    Search

  5. DL919

    Hartsfield–Jackson Atlanta International Airport

    6:45 PM

    ATL

    4h 31m

    Nonstop

    8:16 PM

    LAS

    S M T W T F S

  6. AS409

    Dulles International Airport

    7:02 AM

    IAD

    5h 42m

    Nonstop

    9:44 AM

    SEA

    S M T W T F S
    Search

  7. AS728

    Seattle-Tacoma International Airport

    1:36 PM

    SEA

    2h 35m

    Nonstop

    4:11 PM

    LAS

    S - - W T F S

  8. F94409

    Dulles International Airport

    9:04 PM

    IAD

    2h 1m

    Nonstop

    11:05 PM

    ATL

    S M T W T F S
    Search

  9. F94891

    Hartsfield–Jackson Atlanta International Airport

    9:00 AM

    ATL

    4h 36m

    Nonstop

    10:36 AM

    LAS

    S M T W T F S

  10. F94355

    Dulles International Airport

    11:12 AM

    IAD

    2h 26m

    Nonstop

    1:38 PM

    MCO

    S M T W - F S
    Search

  11. F91875

    Orlando International Airport

    1:03 PM

    MCO

    5h 11m

    Nonstop

    3:14 PM

    LAS

    S M T W T F S

  12. F94707

    Dulles International Airport

    7:50 AM

    IAD

    2h 4m

    Nonstop

    9:54 AM

    ATL

    S M T W T F S
    Search

  13. F94891

    Hartsfield–Jackson Atlanta International Airport

    9:00 AM

    ATL

    4h 36m

    Nonstop

    10:36 AM

    LAS

    S M T W T F S
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About Dulles International Airport and Harry Reid International Airport

Learn about Dulles International Airport (IAD) and Harry Reid International Airport (LAS) — including location, terminals, transportation, and travel tips.

Flight distance 3,320.34 km
Cheapest one-way ticket price THB 3,340
Cheapest return ticket price THB 5,210

FAQs for Dulles International Airport to Harry Reid International Airport Flights

  • How long is the flight from Dulles International Airport to Harry Reid International Airport?

    Dulles International Airport to Harry Reid International Airport takes about 4 hours 54 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 5 daily flights from Dulles International Airport (IAD) to Harry Reid International Airport (LAS).
  • The earliest flight from Dulles International Airport to Harry Reid International Airport departs at 06:00, and the last departs at 18:00, with about 6 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Dulles International Airport (IAD) to Harry Reid International Airport (LAS) is quite popular. Without considering departure times or holidays, tickets cost around THB 10,600 in October, the most expensive month to book this route.
  • United Airlines is a very popular airline operating an average of 2880 flights per month.
  • One-way flights from Dulles International Airport to Harry Reid International Airport currently start from THB 3,340, and round-trip fares start from THB 5,210. The current lowest fare is a Frontier Airlines flight departing on Wed, Dec 2; prices may vary depending on availability.
  • Yes. United Airlines and Frontier Airlines operate direct flights from Dulles International Airport to Harry Reid International Airport, with an average flight time of 5 hours 24 minutes, and around 42 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Dulles International Airport to Harry Reid International Airport is THB 8,400. Prices may vary depending on the departure date, airline, and availability.
  • Frontier Airlines and Volaris are the most popular budget airlines flying from Dulles International Airport to Harry Reid International Airport, with one-way fares starting from THB 3,340. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Dulles International Airport to Harry Reid International Airport operates around 42 weekly flights, mainly by United Airlines and Frontier Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Dulles International Airport and Harry Reid International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before payment. Charges for checked baggage, onboard meals, Wi-Fi, and other optional services may also appear in the flight cards where applicable.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and for many routes the data may refresh in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.