Flights To Washington County - Cheap Flights Starting at CA $121

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How Much Does it Cost To Fly To Washington County?

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Tue, Sep 29 - Sat, Oct 10
ONT
Ontario Intl. Airport
BOI
Boise
CA $247 Roundtrip, found 4 days ago
CA $247
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, Sep 29 from Ontario Intl. Airport to Boise, returning Sat, Oct 10, priced at CA $247 found 4 days ago
Tue, Sep 29 - Sat, Oct 17
LAX
Los Angeles Intl.
BOI
Boise
CA $275 Roundtrip, found 4 days ago
CA $275
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Sep 29 from Los Angeles Intl. to Boise, returning Sat, Oct 17, priced at CA $275 found 4 days ago
Wed, Nov 11 - Wed, Nov 18
SEA
Seattle - Tacoma Intl.
BOI
Boise
CA $275 Roundtrip, found 6 days ago
CA $275
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Nov 11 from Seattle - Tacoma Intl. to Boise, returning Wed, Nov 18, priced at CA $275 found 6 days ago
Sat, Aug 22 - Sat, Aug 29
PHX
Sky Harbor Intl.
BOI
Boise
CA $330 Roundtrip, found 4 days ago
CA $330
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Aug 22 from Sky Harbor Intl. to Boise, returning Sat, Aug 29, priced at CA $330 found 4 days ago
Thu, Oct 1 - Mon, Oct 5
SFO
San Francisco Intl.
BOI
Boise
CA $331 Roundtrip, found 13 hours ago
CA $331
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Thu, Oct 1 from San Francisco Intl. to Boise, returning Mon, Oct 5, priced at CA $331 found 13 hours ago
Thu, Aug 6 - Mon, Aug 10
SMF
Sacramento Intl.
BOI
Boise
CA $341 Roundtrip, found 13 hours ago
CA $341
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Thu, Aug 6 from Sacramento Intl. to Boise, returning Mon, Aug 10, priced at CA $341 found 13 hours ago
Thu, Aug 13 - Tue, Aug 18
DEN
Denver Intl.
BOI
Boise
CA $374 Roundtrip, found 1 day ago
CA $374
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Aug 13 from Denver Intl. to Boise, returning Tue, Aug 18, priced at CA $374 found 1 day ago
Wed, Oct 21 - Sat, Oct 24
DCA
Ronald Reagan Washington National
BOI
Boise
CA $408 Roundtrip, found 1 day ago
CA $408
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 21 from Ronald Reagan Washington National to Boise, returning Sat, Oct 24, priced at CA $408 found 1 day ago
Fri, Jul 10 - Tue, Jul 14
YYZ
Pearson Intl.
BOI
Boise
CA $477 Roundtrip, found 3 days ago
CA $477
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Jul 10 from Pearson Intl. to Boise, returning Tue, Jul 14, priced at CA $477 found 3 days ago
Thu, Aug 13 - Sun, Aug 16
YEG
Edmonton Intl.
BOI
Boise
CA $513 Roundtrip, found 4 days ago
CA $513
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Aug 13 from Edmonton Intl. to Boise, returning Sun, Aug 16, priced at CA $513 found 4 days ago
Thu, Jul 9 - Tue, Jul 14
YHZ
Stanfield Intl.
BOI
Boise
CA $592 Roundtrip, found 3 hours ago
CA $592
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Thu, Jul 9 from Stanfield Intl. to Boise, returning Tue, Jul 14, priced at CA $592 found 3 hours ago
OriginDestinationTravel datesFlights from*
ONTBoiseSeptember 29 to October 10CA $247
LAXBoiseSeptember 29 to October 17CA $275
SEABoiseAugust 22 to August 29CA $276
PDXBoiseSeptember 4 to September 8CA $289
PHXBoiseAugust 22 to August 29CA $330
SANBoiseJuly 8 to July 11CA $360
DENBoiseAugust 13 to August 18CA $374
GEGBoiseSeptember 2 to September 4CA $415
SFOBoiseJuly 16 to July 26CA $452
SLCBoiseJuly 23 to July 25CA $484
*Prices include taxes and fees
OriginDestinationTravel datesFlights from*
SFOBoiseJune 20 to June 27CA $616
SEABoiseJune 19 to June 23CA $680
LAXBoiseJune 19 to June 23CA $767
DENBoiseJune 21 to June 25CA $972
*Prices include taxes and fees

Travelers ❤️ These Washington County 🏨

Weiser Motel & RV Park

Weiser Motel & RV Park

2.5 out of 5
747 Hillcrest Avenue Weiser ID
Stay at this hotel in Weiser. Enjoy free WiFi, free parking, and Netflix. Our guests praise the helpful staff and the clean rooms in our reviews.
9/10 Wonderful! (198 reviews)
"Nice comfy clean room. Lots of pillows. Staff was nice would definitely stay there again. 2 thumbs up !"

Reviewed on Jun 3, 2026

Opens in a new windowWeiser Motel & RV Park
Red Lion Inn & Suites Ontario

Red Lion Inn & Suites Ontario

2 out of 5
266 NE Goodfellow St. Ontario OR
Stay at this hotel in Ontario. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Four Rivers Cultural Center and Beck-Kiwanis Park are located nearby.
7.8/10 Good! (1,575 reviews)
"Great: Soft pillows and soft bed. Very clean. The room had a small love seat and footstool that is so much nicer than having typical hotel desk chairs. Could be better: The only restaurants in walking distance are fast food, but that isn’t something the hotel can help with. The breakfast was pastries ..."

Reviewed on Jun 17, 2026

Opens in a new windowRed Lion Inn & Suites Ontario
Motel 6 Ontario, OR

Motel 6 Ontario, OR

2 out of 5
275 Ne 12th St Ontario OR
Stay at this motel in Ontario. Enjoy free WiFi, free parking, and an outdoor pool. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Four Rivers Cultural Center and Beck-Kiwanis Park are located nearby.
7.8/10 Good! (1,034 reviews)
"Staff were very pleasant.. no complaints Room was in a bit of disrepair, shower head pipe flange was hanging (wrapped a towel around it so I wouldn’t look at a hole in the wall)"

Reviewed on Jun 15, 2026

Opens in a new windowMotel 6 Ontario, OR
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Birch Glen Hotel

Birch Glen Hotel

2 out of 5
762 S Main St Cascade ID
Book a stay at this family-friendly hotel in Cascade. Enjoy free WiFi, free parking, and a sauna. Popular attractions Kelly's Whitewater Park and Armstrong Park are located nearby.
7.4/10 Good! (130 reviews)
"Excellent for an overnight stay in cascade. Would recommend amenities included a bath mat and an extra hand towel. Well priced rooms and burger place next door was awesome."

Reviewed on Jun 14, 2026

Opens in a new windowBirch Glen Hotel
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

How much is the cheapest flight to Washington County?
Based on prices found over the last seven days, a roundtrip flight to Washington County was as low as CA $247. If you can be flexible with your dates, it makes it easy to snap up a great bargain. This price was available on Travelocity for flights to Washington County departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly to Washington County?
Splash out more money on grand experiences and less on your airline ticket by making your way to Washington County in September. This is the most affordable time to set off to this place based on Travelocity's direct return flight demand from January to December last year. Take a peek at our selection of flights and get away from it all without emptying your bank account.
How can I check my flight status to Washington County?
Get useful alerts about your flight status and gate numbers with Trips. Travelocity's handy portal can be found at the top right of our homepage and is the place to view and manage your bookings. Create your account in a matter of seconds and everything will be at your fingertips. Or, download the Travelocity app and look up the details of your flight to Washington County while you're on the move — and even when you're offline. Travelocity's app is the travel companion in your pocket. Whether you'd like to add transportation from your airport or share your travel itinerary with any members of your family flying with you, the app is your one-stop travel shop.
How do I find the best deals on flights to Washington County?
It's always wise to book early, and if you can, avoid traveling during vacation periods. Another smart way to save is by clicking the "Flexible dates" box at the top of the page after searching for your flights. This lets you compare fares for nearby days. In the last seven days, the lowest price for a return flight to Washington County was CA $247. This price was available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Why should I book my flight to Washington County with Travelocity?
Browse cheap flights to Washington County with Travelocity and begin organizing your next adventure. With round-the-clock customer assistance during every step of your trip and a Price Match Guarantee, we take the bother out of securing cheap family flights, places to stay and more. Nab an awesome deal today and brace yourself for the adventure of a lifetime.
What are the most popular flight routes to Washington County?
If you're planning to book a flight to Washington County, here are some well-known routes to take a look at:

  • Seattle, WA (SEA-Seattle - Tacoma Intl.) to Boise Airport (BOI) - 2,881 flights a month.
  • Los Angeles, CA (LAX-Los Angeles Intl.) to Boise Airport (BOI) - 1,343 flights a month.
  • San Francisco, CA (SFO-San Francisco Intl.) to Boise Airport (BOI) - 1,174 flights a month.

How much is a flight to Washington County on average?
Airfares for roundtrip flights to Washington County were priced between CA $247 and CA $972 in the last seven days. As soon as you find a good deal, lock it in and get ready for your next big adventure with Travelocity. These prices were available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.