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$70 Find cheap flights from Washington to Idaho Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Idaho Falls departing on 6/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 6/28
Fri 7/5

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In the last 7 days travelers have searched 43,361,115 times on KAYAK, and here is why:

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Good to know

Low season

March

High season

July

Cheapest flight

$70
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from Portland to Idaho Falls

FAQs for booking flights from Washington to Idaho Falls

  • How does KAYAK find such low prices on flights from Washington to Idaho Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Idaho Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Idaho Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to Idaho Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Idaho Falls with an airline and back to Washington with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Idaho Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Idaho Falls from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Washington to Idaho Falls?

Find which airlines fly direct from Washington to Fanning Field, which days they fly and book direct flights.

Nonstop departures

Washington to Idaho Falls Fanning Field

Monday

Aeromexico, Air France, Alaska Airlines, +6 more

Aeromexico, Air France, +7 more

Tuesday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

Wednesday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

Thursday

Aeromexico, Air France, Alaska Airlines, +8 more

Aeromexico, Air France, +9 more

Friday

Aeromexico, Air France, Alaska Airlines, +6 more

Aeromexico, Air France, +7 more

Saturday

Aeromexico, Air France, Alaska Airlines, +8 more

Aeromexico, Air France, +9 more

Sunday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

See more direct flights

Nonstop returns

Idaho Falls Fanning Field to Washington

Monday

Aeromexico, Air France, Alaska Airlines, +6 more

Aeromexico, Air France, +7 more

Tuesday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

Wednesday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

Thursday

Aeromexico, Air France, Alaska Airlines, +8 more

Aeromexico, Air France, +9 more

Friday

Aeromexico, Air France, Alaska Airlines, +6 more

Aeromexico, Air France, +7 more

Saturday

Aeromexico, Air France, Alaska Airlines, +8 more

Aeromexico, Air France, +9 more

Sunday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

See more direct flights
See more direct flights

Book cheap flights from Washington to Idaho Falls

Recent round-trip flight deals

6/28Fri
nonstopAllegiant Air
1h 39mPDX-IDA
7/1Mon
nonstopAllegiant Air
1h 39mIDA-PDX
$110
6/17Mon
nonstopAllegiant Air
1h 39mPDX-IDA
6/24Mon
nonstopAllegiant Air
1h 39mIDA-PDX
$114
6/14Fri
nonstop
1h 39mPDX-IDA
6/17Mon
1 stop
14h 03mIDA-PDX
$153
6/14Fri
nonstop
1h 39mPDX-IDA
6/17Mon
2 stops
22h 01mIDA-PDX
$170
8/21Wed
nonstopAlaska Airlines
1h 39mSEA-IDA
8/25Sun
nonstopAlaska Airlines
1h 50mIDA-SEA
$177
6/22Sat
nonstopAlaska Airlines
1h 42mSEA-IDA
6/24Mon
nonstopAlaska Airlines
1h 52mIDA-SEA
$207
10/1Tue
1 stopDelta
3h 40mPDX-IDA
10/31Thu
1 stopDelta
3h 49mIDA-PDX
$258
8/23Fri
1 stopDelta
5h 23mGEG-IDA
8/26Mon
1 stopDelta
5h 36mIDA-GEG
$278
8/20Tue
1 stopUnited Airlines
25h 22mSEA-IDA
8/24Sat
2 stopsUnited Airlines
19h 18mIDA-SEA
$520
6/18Tue
1 stopUnited Airlines
15h 03mSEA-IDA
6/20Thu
1 stopUnited Airlines
25h 52mIDA-SEA
$525

Search by stops

Search by airline

Search by price

Recent one-way flight deals

6/24Mon
nonstopAllegiant Air
1h 39mPDX-IDA
$70
6/18Tue
1 stopAlaska Airlines
26h 27mGEG-IDA
$157
6/6Thu
2 stops
27h 22mSEA-IDA
$161
6/10Mon
1 stop
8h 52mPDX-IDA
$168
6/6Thu
1 stopDelta
5h 58mSEA-IDA
$238
8/3Sat
1 stopUnited Airlines
27h 30mSEA-IDA
$313
6/21Fri
1 stopUnited Airlines
27h 35mSEA-IDA
$353
6/4Tue
1 stopDelta
4h 07mGEG-IDA
$368
6/23Sun
1 stopAmerican Airlines
11h 14mPDX-IDA
$723
6/5Wed
1 stopAmerican Airlines
19h 29mSEA-IDA
$723

Search by stops

Search by airline

Search by price

Last minute flights from Washington to Idaho Falls

Last minute flight, train and bus deals

5/31Fri
nonstopAlaska Airlines
1h 42mSEA-IDA
6/3Mon
nonstopAlaska Airlines
1h 49mIDA-SEA
$597
5/30Thu
multi-stopDelta
3h 47mSEA-IDA
5/31Fri
multi-stopDelta
4h 21mIDA-SEA
$616
5/30Thu
multi-stop
18h 33mSEA-IDA
5/31Fri
multi-stop
11h 38mIDA-SEA
$624
5/30Thu
multi-stopDelta
5h 58mSEA-IDA
6/2Sun
multi-stopDelta
5h 59mIDA-SEA
$697
5/30Thu
nonstopAlaska Airlines
1h 42mSEA-IDA
6/2Sun
nonstopAlaska Airlines
1h 49mIDA-SEA
$737
5/31Fri
multi-stopDelta
4h 07mGEG-IDA
6/2Sun
multi-stopDelta
3h 40mIDA-GEG
$908
5/31Fri
multi-stopUnited Airlines
13h 38mSEA-IDA
6/3Mon
multi-stopUnited Airlines
18h 32mIDA-SEA
$930
5/30Thu
multi-stop
18h 33mSEA-IDA
5/31Fri
multi-stop
19h 42mIDA-SEA
$1,016
5/31Fri
multi-stopUnited Airlines
13h 38mSEA-IDA
6/3Mon
multi-stopUnited Airlines
18h 34mIDA-SEA
$1,030
5/30Thu
multi-stopAmerican Airlines
27h 35mSEA-IDA
6/2Sun
multi-stopAmerican Airlines
24h 47mIDA-SEA
$1,199

Search by stops

Search by airline

Search by price

Flights to Idaho Falls

Destination:

Idaho Falls (IDA)United States

Return flight deals:

Idaho Falls - Washington

Cabin classes:

$656
$262