Cheap Flights to Union County from $109

View $109 flight on Tue, Jun 9, 2026Opens in a new window

Popular airlines to Union County

  • Alaska Airlines

  • American Airlines

  • Qatar Airways

  • Aer Lingus

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How much is the cheapest flight to Union County?

Prices were available within the past 7 days and start at $109 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, May 30 - Tue, Jun 2
SEA
Seattle
ALW
Walla Walla
$157 Roundtrip, found 11 hours ago
$157
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat, May 30 from Seattle to Walla Walla, returning Tue, Jun 2, priced at $157 found 11 hours ago
Alaska Airlines
Sat, May 30 - Sun, May 31
SEA
Seattle
ALW
Walla Walla
$167 Roundtrip, found 6 hours ago
$167
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Sat, May 30 from Seattle to Walla Walla, returning Sun, May 31, priced at $167 found 6 hours ago
Alaska Airlines
Fri, May 29 - Sun, May 31
SEA
Seattle
ALW
Walla Walla
$177 Roundtrip, found 11 hours ago
$177
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Fri, May 29 from Seattle to Walla Walla, returning Sun, May 31, priced at $177 found 11 hours ago
Alaska Airlines
Wed, Jun 3 - Sun, Jun 7
SEA
Seattle
ALW
Walla Walla
$197 Roundtrip, found 2 days ago
$197
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Jun 3 from Seattle to Walla Walla, returning Sun, Jun 7, priced at $197 found 2 days ago
Alaska Airlines
Sat, Jun 6 - Sun, Jun 7
SEA
Seattle
ALW
Walla Walla
$202 Roundtrip, found 10 hours ago
$202
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Sat, Jun 6 from Seattle to Walla Walla, returning Sun, Jun 7, priced at $202 found 10 hours ago
Alaska Airlines
Fri, Jun 5 - Fri, Jun 12
SEA
Seattle
ALW
Walla Walla
$207 Roundtrip, found 2 days ago
$207
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Jun 5 from Seattle to Walla Walla, returning Fri, Jun 12, priced at $207 found 2 days ago
Alaska Airlines
Sun, Jun 7 - Thu, Jul 2
SEA
Seattle
ALW
Walla Walla
$212 Roundtrip, found 10 hours ago
$212
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Sun, Jun 7 from Seattle to Walla Walla, returning Thu, Jul 2, priced at $212 found 10 hours ago
Alaska Airlines
Tue, Jun 2 - Wed, Jun 3
SEA
Seattle
ALW
Walla Walla
$217 Roundtrip, found 11 hours ago
$217
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Tue, Jun 2 from Seattle to Walla Walla, returning Wed, Jun 3, priced at $217 found 11 hours ago
Alaska Airlines
Wed, Jun 3 - Tue, Jun 9
SEA
Seattle
ALW
Walla Walla
$222 Roundtrip, found 11 hours ago
$222
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Wed, Jun 3 from Seattle to Walla Walla, returning Tue, Jun 9, priced at $222 found 11 hours ago
American Airlines
Sat, May 30 - Wed, Jun 3
SEA
Seattle
ALW
Walla Walla
$257 Roundtrip, found 1 day ago
$257
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, May 30 from Seattle to Walla Walla, returning Wed, Jun 3, priced at $257 found 1 day ago

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
Sat, May 30 - Tue, Jun 2
SEA
Seattle
ALW
Walla Walla
$157 Roundtrip, found 11 hours ago
$157
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat, May 30 from Seattle to Walla Walla, returning Tue, Jun 2, priced at $157 found 11 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, $157 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 $157 and $257. If you were traveling one way out of Seattle (SEA), you could have purchased a cheap fare from only $109.
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 $157 to $257 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.

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Travel information

*Flight schedules are subject to change.

*Available to One Key members.

 

*Flight schedules are subject to change.

*Available to One Key members.