App
Customer Support
ILS
Find Bookings
Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system

Cheap flight deals from San Diego to Denver Starting at ILS 69

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip
      • Cheapest nonstop
        SAN06:25 am
        2h 31m
        Nonstop
        DEN09:56 am
        Wed, Jan 29|San Diego - Denver|Frontier Airlines
        ILS 69ILS 110
        38% OFF
        38% OFF
        ILS 110ILS 69

        Choose Frontier Airlines flights from San Diego to Denver. The one-way direct flight with Frontier Airlines departs from San Diego International Airport on Wed, Jan 29, arriving at Denver International Airport. One-way Prices start from ILS 69 including taxes and charges.

      • SAN06:25 am
        2h 31m
        Nonstop
        DEN09:56 am
        Tue, Jan 28|San Diego - Denver|Frontier Airlines
        ILS 99ILS 110
        10% OFF
        10% OFF
        ILS 110ILS 99

        Choose Frontier Airlines flights from San Diego to Denver. The one-way direct flight with Frontier Airlines departs from San Diego International Airport on Tue, Jan 28, arriving at Denver International Airport. One-way Prices start from ILS 99 including taxes and charges.

      • SAN12:01 pm
        2h 28m
        Nonstop
        DEN03:29 pm
        Sat, Feb 8|San Diego - Denver|Frontier Airlines
        ILS 99ILS 110
        10% OFF
        10% OFF
        ILS 110ILS 99

        Choose Frontier Airlines flights from San Diego to Denver. The one-way direct flight with Frontier Airlines departs from San Diego International Airport on Sat, Feb 8, arriving at Denver International Airport. One-way Prices start from ILS 99 including taxes and charges.

      • SAN06:25 am
        2h 31m
        Nonstop
        DEN09:56 am
        Sat, Jan 25|San Diego - Denver|Frontier Airlines
        ILS 99
        ILS 99

        Choose Frontier Airlines flights from San Diego to Denver. The one-way direct flight with Frontier Airlines departs from San Diego International Airport on Sat, Jan 25, arriving at Denver International Airport. One-way Prices start from ILS 99 including taxes and charges.

      • SAN02:32 pm
        2h 30m
        Nonstop
        DEN06:02 pm
        Tue, Feb 4|San Diego - Denver|Frontier Airlines
        ILS 99
        ILS 99

        Choose Frontier Airlines flights from San Diego to Denver. The one-way direct flight with Frontier Airlines departs from San Diego International Airport on Tue, Feb 4, arriving at Denver International Airport. One-way Prices start from ILS 99 including taxes and charges.

      • SAN06:25 am
        2h 31m
        Nonstop
        DEN09:56 am
        Wed, Feb 12|San Diego - Denver|Frontier Airlines
        ILS 99
        ILS 99

        Choose Frontier Airlines flights from San Diego to Denver. The one-way direct flight with Frontier Airlines departs from San Diego International Airport on Wed, Feb 12, arriving at Denver International Airport. One-way Prices start from ILS 99 including taxes and charges.

      • SAN06:25 am
        2h 31m
        Nonstop
        DEN09:56 am
        Wed, Mar 5|San Diego - Denver|Frontier Airlines
        ILS 99
        ILS 99

        Choose Frontier Airlines flights from San Diego to Denver. The one-way direct flight with Frontier Airlines departs from San Diego International Airport on Wed, Mar 5, arriving at Denver International Airport. One-way Prices start from ILS 99 including taxes and charges.

      • SAN06:25 am
        2h 31m
        Nonstop
        DEN09:56 am
        Tue, Feb 11|San Diego - Denver|Frontier Airlines
        ILS 99
        ILS 99

        Choose Frontier Airlines flights from San Diego to Denver. The one-way direct flight with Frontier Airlines departs from San Diego International Airport on Tue, Feb 11, arriving at Denver International Airport. One-way Prices start from ILS 99 including taxes and charges.

      • SAN04:06 pm
        2h 27m
        Nonstop
        DEN07:33 pm
        Tue, Feb 25|San Diego - Denver|Frontier Airlines
        ILS 99
        ILS 99

        Choose Frontier Airlines flights from San Diego to Denver. The one-way direct flight with Frontier Airlines departs from San Diego International Airport on Tue, Feb 25, arriving at Denver International Airport. One-way Prices start from ILS 99 including taxes and charges.

      • SAN06:25 am
        2h 31m
        Nonstop
        DEN09:56 am
        Wed, Feb 26|San Diego - Denver|Frontier Airlines
        ILS 99
        ILS 99

        Choose Frontier Airlines flights from San Diego to Denver. The one-way direct flight with Frontier Airlines departs from San Diego International Airport on Wed, Feb 26, arriving at Denver International Airport. One-way Prices start from ILS 99 including taxes and charges.

      • SAN01:00 pm
        3h 5m
        Nonstop
        DEN02:00 pm
        Fri, Jan 24|San Diego - Denver|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from San Diego to Denver?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Alternative Cheap Routes from San Diego to Denver

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from San Diego to Denver.

  • Cheapest
    Frontier Airlines
    SAN
    06:25 am
    2h 31m
    Nonstop
    DEN
    09:56 am
    San Diego International Airport - Denver International Airport
    Wed, Jan 29Frontier Airlines
    ILS 69
  • American Airlines
    CLD
    06:15 am
    4h 6m
    1 transfer
    DEN
    11:21 am
    McClellan-Palomar Airport - Denver International Airport
    Sat, Feb 22American Airlines
    ILS 443
  • American Airlines
    CLD
    06:15 am
    4h 6m
    1 transfer
    DEN
    11:21 am
    McClellan-Palomar Airport - Denver International Airport
    Sat, Feb 22American Airlines
    ILS 443
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from San Diego (SAN) to Denver (DEN) the cheapest?

    Airlines adjust prices for flights from San Diego to Denver based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from San Diego (SAN) to Denver (DEN) cost?

    According to Trip.com's data, the lowest price is around ILS 687.

  • How long does it take to fly from San Diego (SAN) to Denver (DEN) and what is the distance?

    It takes around 2 hours 42 minutes to fly from San Diego (SAN) to Denver (DEN).

  • What are the most popular airlines that fly from San Diego (SAN) to Denver (DEN)?

    Airlines with flights from San Diego (SAN) to Denver (DEN): Southwest Airlines, United Airlines, Frontier Airlines and Air Canada.

How to find a cheap flight from San Diego to Denver

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from San Diego to Denver. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | San Diego to Denver

Cheapest nonstop flight priceILS 68
Cheapest round-trip ticket priceILS 157
Off-season for travelDecember
Peak season for travelApril
Flight distance1,371.45 km
Average flight time2 hours 42 minutes
Popular airlineAmerican Airlines

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2025 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.