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$51 Find cheap flights from Idaho to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 8/28. 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
Sun 6/30
Sun 7/7

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In the last 7 days travelers have searched 42,787,818 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

July

Cheapest flight

$51
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Boise to Seattle

FAQs for booking flights from Idaho to Seattle

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

    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 Idaho to Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Idaho 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 Idaho to Seattle?

    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 Seattle with an airline and back to Idaho with another airline.

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

    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 Seattle from Idaho 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 Idaho to Seattle?

Find which airlines fly direct from Idaho to Seattle/Tacoma Intl, which days they fly and book direct flights.

Nonstop departures

Idaho to Seattle/Tacoma Intl

Monday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Tuesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Wednesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Thursday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +63 more

ANA, Aer Lingus, +64 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Idaho

Monday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Tuesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Wednesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Thursday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +63 more

ANA, Aer Lingus, +64 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights
See more direct flights

Book cheap flights from Idaho to Seattle

Recent round-trip flight deals

9/25Wed
1 stopSpirit Airlines
12h 10mBOI-SEA
10/2Wed
1 stopSpirit Airlines
10h 07mSEA-BOI
$124
9/25Wed
nonstopDelta
1h 47mBOI-SEA
10/2Wed
nonstopDelta
1h 29mSEA-BOI
$137
6/11Tue
1 stop
12h 19mBOI-SEA
6/12Wed
1 stop
13h 24mSEA-BOI
$145
6/26Wed
nonstopAlaska Airlines
1h 11mGEG-SEA
6/26Wed
1 stopAlaska Airlines
4h 21mSEA-GEG
$151
6/25Tue
1 stop
12h 19mBOI-SEA
6/28Fri
nonstop
1h 25mSEA-BOI
$151
9/25Wed
nonstopAlaska Airlines
1h 32mBOI-SEA
10/2Wed
1 stopAlaska Airlines
3h 37mSEA-BOI
$156
6/15Sat
1 stopUnited Airlines
8h 56mBOI-SEA
6/16Sun
1 stopUnited Airlines
6h 17mSEA-BOI
$376
8/24Sat
1 stopUnited Airlines
12h 14mGEG-SEA
8/26Mon
2 stopsUnited Airlines
16h 15mSEA-GEG
$488
6/21Fri
2 stopsAmerican Airlines
16h 14mIDA-SEA
6/22Sat
2 stopsAmerican Airlines
15h 33mSEA-IDA
$1,060
6/28Fri
2 stopsAmerican Airlines
15h 09mGEG-SEA
7/3Wed
2 stopsAmerican Airlines
19h 22mSEA-GEG
$1,073

Search by stops

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Search by price

Recent one-way flight deals

8/28Wed
1 stopSpirit Airlines
6h 19mBOI-SEA
$51
7/2Tue
1 stopSpirit Airlines
12h 19mBOI-SEA
$63
8/28Wed
nonstopAlaska Airlines
1h 33mBOI-SEA
$69
8/28Wed
nonstopAlaska Airlines
1h 18mGEG-SEA
$69
8/31Sat
nonstopDelta
1h 39mBOI-SEA
$79
8/29Thu
nonstopDelta
1h 48mBOI-SEA
$89
8/31Sat
1 stopUnited Airlines
7h 13mBOI-SEA
$102
6/21Fri
1 stopUnited Airlines
6h 54mBOI-SEA
$108
6/6Thu
1 stop
15h 18mBOI-SEA
$120
8/1Thu
1 stop
10h 48mGEG-SEA
$123

Search by stops

Search by airline

Search by price

Last minute flights from Idaho to Seattle

Last minute flight, train and bus deals

6/5Wed
multi-stopSpirit Airlines
12h 19mBOI-SEA
6/6Thu
multi-stopSpirit Airlines
19h 57mSEA-BOI
$220
6/5Wed
multi-stopSpirit Airlines
12h 19mBOI-SEA
6/12Wed
multi-stopSpirit Airlines
9h 42mSEA-BOI
$257
6/5Wed
multi-stop
12h 19mBOI-SEA
6/12Wed
multi-stop
13h 24mSEA-BOI
$277
6/5Wed
nonstop
1h 29mBOI-SEA
6/12Wed
multi-stop
9h 42mSEA-BOI
$293
6/5Wed
multi-stopAlaska Airlines
20h 49mBOI-SEA
6/6Thu
nonstopAlaska Airlines
1h 30mSEA-BOI
$342
6/5Wed
nonstopAlaska Airlines
1h 09mGEG-SEA
7/7Sun
nonstopAlaska Airlines
1h 04mSEA-GEG
$357
6/5Wed
nonstopDelta
1h 17mGEG-SEA
6/12Wed
nonstopDelta
1h 15mSEA-GEG
$397
6/4Tue
nonstopDelta
1h 40mBOI-SEA
6/4Tue
nonstopDelta
1h 26mSEA-BOI
$467
6/1Sat
multi-stopUnited Airlines
6h 02mBOI-SEA
6/1Sat
multi-stopUnited Airlines
6h 02mSEA-BOI
$486
6/1Sat
multi-stopUnited Airlines
6h 02mBOI-SEA
6/8Sat
multi-stopUnited Airlines
16h 07mSEA-BOI
$616

Search by stops

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Search by price

Flights to Seattle

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Idaho

Cabin classes:

$313
$958
$688
$221