Cheap Flights to Union County from $39

View $39 flight on Sat, Feb 7, 2026Opens in a new window

Popular airlines to Union County

  • Alaska Airlines

    Alaska Airlines

  • American Airlines

    American Airlines

  • Hawaiian Airlines

    Hawaiian Airlines

  • Japan Airlines

    Japan Airlines

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How much is the cheapest flight to Union County?

Prices were available within the past 7 days and start at $39 for one-way flights and $72 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Wed, Jan 28 - Tue, Feb 10
SEA
Seattle
ALW
Walla Walla
$77 Roundtrip, found 9 hours ago
$77
Roundtrip
found 9 hours ago
Select Hawaiian Airlines flight, departing Wed, Jan 28 from Seattle to Walla Walla, returning Tue, Feb 10, priced at $77 found 9 hours ago
Alaska Airlines
Wed, Feb 18 - Sun, Feb 22
SEA
Seattle
ALW
Walla Walla
$87 Roundtrip, found 3 hours ago
$87
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Seattle to Walla Walla, returning Sun, Feb 22, priced at $87 found 3 hours ago
Alaska Airlines
Fri, Mar 13 - Mon, Mar 16
SEA
Seattle
ALW
Walla Walla
$97 Roundtrip, found 1 hour ago
$97
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Fri, Mar 13 from Seattle to Walla Walla, returning Mon, Mar 16, priced at $97 found 1 hour ago
Alaska Airlines
Wed, Feb 11 - Sun, Feb 15
SEA
Seattle
ALW
Walla Walla
$147 Roundtrip, found 2 days ago
$147
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Feb 11 from Seattle to Walla Walla, returning Sun, Feb 15, priced at $147 found 2 days ago
Alaska Airlines
Sat, Feb 14 - Sat, Feb 21
SEA
Seattle
ALW
Walla Walla
$157 Roundtrip, found 4 hours ago
$157
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Feb 14 from Seattle to Walla Walla, returning Sat, Feb 21, priced at $157 found 4 hours ago
Alaska Airlines
Sat, Jan 31 - Sat, Feb 7
ORD
Chicago
ALW
Walla Walla
$159 Roundtrip, found 8 hours ago
$159
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Sat, Jan 31 from Chicago to Walla Walla, returning Sat, Feb 7, priced at $159 found 8 hours ago
Hawaiian Airlines
Wed, Feb 18 - Sat, Feb 21
SLC
Salt Lake City
ALW
Walla Walla
$163 Roundtrip, just found
$163
Roundtrip
just found
Select Hawaiian Airlines flight, departing Wed, Feb 18 from Salt Lake City to Walla Walla, returning Sat, Feb 21, priced at $163 just found
Hawaiian Airlines
Tue, Mar 3 - Wed, Mar 11
SMF
Sacramento
ALW
Walla Walla
$163 Roundtrip, found 5 hours ago
$163
Roundtrip
found 5 hours ago
Select Hawaiian Airlines flight, departing Tue, Mar 3 from Sacramento to Walla Walla, returning Wed, Mar 11, priced at $163 found 5 hours ago
American Airlines
Sun, Feb 15 - Mon, Feb 23
SEA
Seattle
ALW
Walla Walla
$258 Roundtrip, found 2 hours ago
$258
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sun, Feb 15 from Seattle to Walla Walla, returning Mon, Feb 23, priced at $258 found 2 hours ago
United
Tue, Feb 3 - Sat, Feb 7
SMF
Sacramento
PDT
Pendleton
$351 Roundtrip, found 4 days ago
$351
Roundtrip
found 4 days ago
Select United flight, departing Tue, Feb 3 from Sacramento to Pendleton, returning Sat, Feb 7, priced at $351 found 4 days ago

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

Union County Flights Information

Airlines serving
Alaska Airlines, Hawaiian Airlines, American Airlines, United
Roundtrip price
from $72

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, $72 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 $72 and $351. If you were traveling one way out of Seattle (SEA), you could have purchased a cheap fare from only $39.
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 $72 to $351 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.

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, Feb 11 - Wed, Feb 11
SEA
Seattle
ALW
Walla Walla
$72 Roundtrip, found 3 hours ago
$72
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Wed, Feb 11 from Seattle to Walla Walla, returning Wed, Feb 11, priced at $72 found 3 hours ago
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