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Flights from Washington D.C. to Idaho Falls
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Latest Flight Deals from Washington D.C. to Idaho Falls

Book one-way or return flights from Washington D.C. to Idaho Falls from as little as €206. Choose from the popular airlines below and book your flight today!

  • One way
  • Round-trip
      • IAD18:37
        31h 20m
        1 stop
        IDA23:57
        Tue, Aug 13|Washington D.C. - Idaho Falls|Alaska Airlines
        €206€370
        44% OFF
        44% OFF
        €370€206
      • IAD07:30
        18h 27m
        1 stop
        IDA23:57
        Tue, Aug 13|Washington D.C. - Idaho Falls|Delta Air Lines
        €207€370
        44% OFF
        44% OFF
        €370€207
      • IAD19:09
        22h 21m
        1 stop
        IDA15:30
        Mon, Sep 16|Washington D.C. - Idaho Falls|Alaska Airlines
        €209€370
        43% OFF
        43% OFF
        €370€209
      • DCA18:59
        16h 36m
        1 stop
        IDA09:35
        Wed, Jul 10|Washington D.C. - Idaho Falls|Frontier Airlines
        €242
        €242
      • IAD12:45
        6h 32m
        1 stop
        IDA17:17
        Sat, Jul 13|Washington D.C. - Idaho Falls|United Airlines
        €246
        €246
      • IAD11:00
        8h 18m
        1 stop
        IDA17:18
        Tue, Aug 13|Washington D.C. - Idaho Falls|United Airlines
        €248
        €248
      • IAD22:12
        13h 42m
        1 stop
        IDA09:54
        Mon, Sep 16|Washington D.C. - Idaho Falls|United Airlines
        €249
        €249
      • IAD22:08
        17h 20m
        1 stop
        IDA13:28
        Wed, Jul 3|Washington D.C. - Idaho Falls|United Airlines
        €261
        €261
      • DCA07:00
        12h 18m
        1 stop
        IDA17:18
        Fri, Jul 12|Washington D.C. - Idaho Falls|Frontier Airlines
        €261
        €261
      • IAD12:45
        6h 32m
        1 stop
        IDA17:17
        Thu, Aug 15|Washington D.C. - Idaho Falls|United Airlines
        €262
        €262
      • WAS13:00
        3h 5m
        Direct
        IDA14:00
        Sun, Jul 7|Washington D.C. - Idaho Falls|Alaska Airlines
        Find More Flights
        Find More Flights

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

Searching for the best last minute flight from Washington D.C. to Idaho Falls? Find one-way or return flights that are affordable and fit your itinerary.

Trip.com monitors the ticket fares of flights from Washington D.C. to Idaho Falls. Stay updated on price trends and snag the best deals for your upcoming trip.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Airlines Flying from Washington D.C. to Idaho Falls

View airlines operating flights from Washington D.C. to Idaho Falls. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Alaska Airlines
From €206
Delta Air Lines
From €207
Frontier Airlines
From €242
United Airlines
From €246
Sun Country Airlines
From €265
American Airlines
From €357
ANA airlines

Find more flights and airlines

Alternative Routes from Washington D.C. to Idaho Falls

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Washington D.C. to Idaho Falls.

  • Cheapest
    Alaska Airlines
    IAD
    18:37
    31h 20m
    1 transfer
    IDA
    23:57
    Dulles International Airport - Idaho Falls Regional Airport
    Tue, Aug 13Alaska Airlines
    €206
  • Delta Air Lines
    DCA
    12:12
    31h 6m
    2 transfer
    IDA
    17:18
    Ronald Reagan Washington National Airport - Idaho Falls Regional Airport
    Tue, Aug 13Delta Air Lines
    €231
  • Delta Air Lines
    DCA
    12:12
    31h 6m
    2 transfer
    IDA
    17:18
    Ronald Reagan Washington National Airport - Idaho Falls Regional Airport
    Tue, Aug 13Delta Air Lines
    €231
    Find More Flights

How do I find the cheapest flights?

  • When are flight tickets from Washington D.C. (WAS) to Idaho Falls (IDA) the cheapest?

    Airlines adjust prices for flights from Washington D.C. to Idaho Falls 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 Washington D.C. (WAS) to Idaho Falls (IDA) cost?

    According to Trip.com's data, the lowest price is around €707.

  • What is the transportation method from the main airport to downtown in Idaho Falls?

    • The distance from Idaho Falls Regional Airport to downtown is about 3km. It takes about 20 minutes by taxi.

How to find a cheap flight from Washington D.C. to Idaho Falls

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 Washington D.C. to Idaho Falls. 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 Information from Washington D.C. to Idaho Falls

Cheapest nonstop flight price

€205

Off-season for travel

April

Peak season for travel

January

Flight distance

2,953.83km

Popular airline

United Airlines

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