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Cheap flights from Boise to Seattle from C$ 106

BOI — SEA
15 Oct — 22 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boise to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Boise to Seattle

Sun 25/106:45 a.m. -
Nonstop1h 54m
Tue 27/107:15 a.m. -
Nonstop1h 39m
Deal found 10/9C$ 246
Sat 24/107:20 a.m. -
1 stop14h 06m
Mon 26/109:29 p.m. -
Nonstop1h 30m
Deal found 10/9C$ 250
Wed 7/106:50 p.m. -
1 stop7h 25m
Sat 10/107:11 a.m. -
1 stop4h 47m
Deal found 10/9C$ 274
Tue 10/118:01 a.m. -
1 stop9h 51m
Tue 17/117:50 p.m. -
Nonstop1h 30m
Deal found 10/9C$ 278
Sat 24/104:18 p.m. -
Nonstop1h 38m
Sat 31/1012:48 p.m. -
Nonstop1h 35m
Deal found 11/9C$ 288
Fri 9/106:04 p.m. -
Nonstop1h 43m
Mon 12/109:08 p.m. -
1 stop15h 39m
Deal found 10/9C$ 292
Mon 26/102:27 p.m. -
1 stop19h 22m
Tue 27/1012:48 p.m. -
Nonstop1h 35m
Deal found 11/9C$ 295
Fri 16/106:04 p.m. -
Nonstop1h 43m
Fri 16/109:24 p.m. -
1 stop23h 37m
Deal found 14/9C$ 297
Fri 23/108:22 p.m. -
Nonstop1h 35m
Wed 28/109:57 a.m. -
Nonstop1h 38m
Deal found 11/9C$ 301
Tue 17/116:43 p.m. -
1 stop24h 12m
Wed 18/119:24 p.m. -
Nonstop1h 25m
Deal found 14/9C$ 308
Tue 10/116:37 a.m. -
Nonstop1h 43m
Tue 10/1110:59 a.m. -
1 stop27h 29m
Deal found 14/9C$ 311

Find flight deals from Boise to Seattle

Round-trip from

C$ 246

One-way from

C$ 106

Popular in

June

Cheapest in

January

Average price

C$ 390
Delta
  • Delta
  • 25/10-27/10
  • Nonstop
  • 3h 33m total
  • Boise to Seattle
Search Deals
Southwest
  • Southwest
  • 16/10-31/12
  • 1 total stop
  • 4h 45m total
  • Boise to Seattle
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (C$ 125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Boise to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Tue 10/11

12:00 p.m.-4:27 p.m.

1 stop5h 27m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 158

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Mon 8/3

5:00 p.m.-7:22 p.m.

1 stop3h 22m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 172

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Fri 16/10

3:50 p.m.-8:35 p.m.

1 stop5h 45m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 172

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Mon 19/10

7:45 p.m.-1:00 a.m.

1 stop6h 15m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 172

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Wed 14/10

1:25 p.m.-9:45 p.m.

1 stop9h 20m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 179

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Fri 11/12

5:47 a.m.-10:30 a.m.

1 stop5h 43m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 186

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Tue 6/10

2:44 p.m.-9:15 p.m.

1 stop7h 31m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 186

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Thu 10/12

6:00 a.m.-10:36 a.m.

1 stop5h 36m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 186

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Fri 23/10

6:50 p.m.-10:35 p.m.

1 stop4h 45m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 186

BoiseSeattle

BOI Boise Air Term. Gowen Fld - SEA Seattle/Tacoma Intl

BOISEA

Boise Air Term. Gowen Fld

Tue 10/11

3:38 p.m.-4:31 p.m.

Nonstop1h 53m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 200

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Boise to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Boise with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Boise to Seattle

How far ahead should I book a flight from Boise to Seattle?

The price you pay for your flight from Boise to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boise to Seattle?

Currently, January is the cheapest month in which you can book a flight from Boise to Seattle (average of C$ 193). Flying from Boise to Seattle in June is currently the most expensive (average of C$ 461). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOI to SEA?

A simple way to save on the total cost of your ticket is to fly from Boise to Seattle at noon. If you’re flexible enough to do this you can expect to save up to 49% on your trip compared to booking a flight in the afternoon.

How much does it cost to fly round-trip from Boise to Seattle?

Airfare is below average for this route at the moment.

Boise to Seattle flights typically cost between C$ 288 and C$ 547 in October.
The cheapest round-trip price found within the last 5 days was C$ 246 on Delta (25 Oct-27 Oct).

Related info for your journey

  • How popular is this Boise to Seattle flight route?

    This flight path from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Boise to Seattle?

    There are many flights that can get you from Boise to Seattle in 3h 03m. Fly via Alaska Airlines or Southwest to get the fastest option. The distance from Boise to Seattle is about 641 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Boise to Seattle?

    No one likes to see their flight delayed. When booking a flight from Boise to Seattle consider choosing Air France (91%), Aeromexico (90%) or Scandinavian Airlines (86%) as they are the most reliable in getting you off to your destination on time.

  • Can I find deals for flights from Boise to Seattle that include hotel bookings?

    Yes. In addition to deals on Boise to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boise to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Seattle.

  • Can I find deals for business class flights from Boise to Seattle?

    Yes. Cheapflights offers flight deals from Boise to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boise to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Boise to Seattle (average of C$ 193). Flying from Boise to Seattle in June is currently the most expensive (average of C$ 461). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Kent
Mukilteo
Leavenworth
Tacoma
Renton
Cashmere
Lynnwood
Ellensburg
Tukwila
Marysville
Federal Way
Kirkland

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Cheapflights does show flights with no change fees to all users. To see these options for flights from Boise to Seattle, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Boise to Seattle become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Boise today and book when prices fit your budget.

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