Cheap Flights to Union County from $119

View $119 flight on Wed, Sep 30, 2026Opens in a new window

Popular airlines to Union County

  • Alaska Airlines

  • American Airlines

  • Japan Airlines

How much is the cheapest flight to Union County?

Prices were available within the past 7 days and start at $119 for one-way flights and $177 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Sep 30 - Sat, Oct 3
SEA
Seattle
ALW
Walla Walla
$177 Roundtrip, found 6 hours ago
$177
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Wed, Sep 30 from Seattle to Walla Walla, returning Sat, Oct 3, priced at $177 found 6 hours ago
Alaska Airlines
Fri, Aug 21 - Sat, Aug 22
SEA
Seattle
ALW
Walla Walla
$187 Roundtrip, found 1 day ago
$187
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Aug 21 from Seattle to Walla Walla, returning Sat, Aug 22, priced at $187 found 1 day ago
Alaska Airlines
Fri, Sep 25 - Sun, Sep 27
SEA
Seattle
ALW
Walla Walla
$197 Roundtrip, found 8 hours ago
$197
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Fri, Sep 25 from Seattle to Walla Walla, returning Sun, Sep 27, priced at $197 found 8 hours ago
Alaska Airlines
Wed, Sep 30 - Sat, Oct 3
SEA
Seattle
ALW
Walla Walla
$212 Roundtrip, found 6 hours ago
$212
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Wed, Sep 30 from Seattle to Walla Walla, returning Sat, Oct 3, priced at $212 found 6 hours ago
Alaska Airlines
Fri, Sep 25 - Sun, Sep 27
SEA
Seattle
ALW
Walla Walla
$222 Roundtrip, found 8 hours ago
$222
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Fri, Sep 25 from Seattle to Walla Walla, returning Sun, Sep 27, priced at $222 found 8 hours ago
Alaska Airlines
Fri, Nov 6 - Tue, Nov 10
SEA
Seattle
ALW
Walla Walla
$232 Roundtrip, found 1 day ago
$232
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Nov 6 from Seattle to Walla Walla, returning Tue, Nov 10, priced at $232 found 1 day ago
Alaska Airlines
Thu, Oct 8 - Sun, Oct 11
SEA
Seattle
ALW
Walla Walla
$242 Roundtrip, found 3 days ago
$242
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Oct 8 from Seattle to Walla Walla, returning Sun, Oct 11, priced at $242 found 3 days ago
Alaska Airlines
Thu, Jul 30 - Sun, Aug 2
SEA
Seattle
ALW
Walla Walla
$247 Roundtrip, just found
$247
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Jul 30 from Seattle to Walla Walla, returning Sun, Aug 2, priced at $247 just found
American Airlines
Sat, Oct 10 - Wed, Oct 14
SEA
Seattle
ALW
Walla Walla
$257 Roundtrip, found 1 day ago
$257
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Oct 10 from Seattle to Walla Walla, returning Wed, Oct 14, priced at $257 found 1 day ago
Alaska Airlines
Wed, Jul 1 - Mon, Jul 6
SEA
Seattle
ALW
Walla Walla
$267 Roundtrip, found 3 hours ago
$267
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Wed, Jul 1 from Seattle to Walla Walla, returning Mon, Jul 6, priced at $267 found 3 hours ago
Book with confidence

Enjoy extra legroom, flight flexibility, and a seamless travel experience.

Trending flights to Union County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Sep 30 - Sat, Oct 3
SEA
Seattle
ALW
Walla Walla
$177 Roundtrip, found 6 hours ago
$177
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Wed, Sep 30 from Seattle to Walla Walla, returning Sat, Oct 3, priced at $177 found 6 hours ago

Frequently asked questions

How do I find cheap flights to Union County that have flexible change policies?
We get that travel arrangements can change very quickly, so choosing a flexible ticket with Expedia is always a wise idea. Simply mark the "No change fee" box below the "Flexible change policies" filter. Your well-priced and flexible flight to Union County is only a few clicks away.
Which airlines fly to Union County?
With a great selection of airlines flying into or near Union County, the choice is yours:

  • Alaska Airlines - 754 flights to or near Union County each month, including 754 flights to Boise Airport (BOI) per month.
  • Delta Air Lines - 489 flights to or near Union County each month, including 489 flights to Boise Airport (BOI) per month.
  • United Airlines - 303 flights to or near Union County each month, including 303 flights to Boise Airport (BOI) per month.

How can I find cheap tickets to Union County?
In the last seven days, $177 was the best price for a flight to Union County. For an even cheaper fare, book well ahead of time and be flexible with your travel dates. Search for your flight to Union County, then compare prices for similar time frames by clicking on our "flexible dates" link.
How much is a flight to Union County?
The price of a round-trip ticket to Union County in the last seven days varied between $177 and $267. If you were traveling one way out of Seattle (SEA), you could have purchased a cheap fare from only $119.
What are the most popular airports to fly into in Union County?
Zip up your suitcase and fly into Boise Airport (BOI), Union County's major flight hub. Reserve a seat on one of the 1,994 flights that land at this well-known destination each month.
When is the cheapest time to fly to Union County?
If you're not set on what day you jet off to Union County, try to fly out early in the week. The most affordable day to take off is normally Tuesday, followed by Monday. Saturday is typically the costliest day, with many vacationers opting to fly on the weekend.
How much is a plane ticket to Union County?
Seats ranged anywhere from $177 to $267 over the last seven days. When you're ready to book, we're ready to help you grab an awesome deal to Union County.
What months are the cheapest to book a flight to Union County?
February is the best month to secure a seat for your Union County break. Fares are at their most expensive throughout the month of December, so steer clear of this time if you can.
How long is a flight to Union County?
Your flight to Union County could be short or long depending on where you depart from. Before you load your tablet with podcasts and audiobooks, take a look at the average flight times for these sought-after domestic routes:

  • Seattle, WA (SEA-Seattle - Tacoma Intl.) to Boise Airport (BOI) - 1 hour and 26 minutes
  • Denver, CO (DEN-Denver Intl.) to Boise Airport (BOI) - 1 hour and 57 minutes
  • San Francisco, CA (SFO-San Francisco Intl.) to Boise Airport (BOI) - 1 hour and 40 minutes

What is the best time to go to Union County?
A lovely time to check out La Grande is after June 20 when summer begins. In Union County's major city, average temperatures fluctuate from 50ºF to 75ºF at this time — ideal weather for sightseeing! March, May and July are the most popular months to travel to this hot spot.

Book with confidence

Enjoy extra legroom, flight flexibility, and a seamless travel experience.

Travel information

*Flight schedules are subject to change.

*Available to One Key members.

 

*Flight schedules are subject to change.

*Available to One Key members.