Search Cheap Flights to
Union

Search 400 airlines and 321,000 hotels worldwide.

Stop Planning & Start Exploring

FREE 24 hour cancellation on most flights

Union Flights as Low as $61

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

Frontier Airlines
Tue, May 5 - Thu, May 7
LAX
Los Angeles Intl.
SEA
Seattle - Tacoma Intl.
$61 Roundtrip, found 2 hours ago
$61
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, May 5 from Los Angeles Intl. to Seattle - Tacoma Intl., returning Thu, May 7, priced at $61 found 2 hours ago
Frontier Airlines
Thu, Jun 4 - Tue, Jun 9
LAX
Los Angeles Intl.
SEA
Seattle - Tacoma Intl.
$72 Roundtrip, found 3 hours ago
$72
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Thu, Jun 4 from Los Angeles Intl. to Seattle - Tacoma Intl., returning Tue, Jun 9, priced at $72 found 3 hours ago
Bargain Flight
Wed, Jun 10 - Wed, Jun 10
SFO
San Francisco Intl.
SEA
Seattle - Tacoma Intl.
$151 Roundtrip, just found
$151
Roundtrip
just found
Select Bargain Flight flight, departing Wed, Jun 10 from San Francisco Intl. to Seattle - Tacoma Intl., returning Wed, Jun 10, priced at $151 just found
Alaska Airlines
Tue, Jun 9 - Tue, Jun 9
SFO
San Francisco Intl.
PAE
Seattle Paine Field Intl. Airport
$152 Roundtrip, found 5 days ago
$152
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Jun 9 from San Francisco Intl. to Seattle Paine Field Intl. Airport, returning Tue, Jun 9, priced at $152 found 5 days ago
Delta
Tue, May 5 - Tue, May 5
SFO
San Francisco Intl.
SEA
Seattle - Tacoma Intl.
$154 Roundtrip, just found
$154
Roundtrip
just found
Select Delta flight, departing Tue, May 5 from San Francisco Intl. to Seattle - Tacoma Intl., returning Tue, May 5, priced at $154 just found
United
Tue, Jun 9 - Wed, Jun 10
SFO
San Francisco Intl.
SEA
Seattle - Tacoma Intl.
$157 Roundtrip, found 2 hours ago
$157
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Jun 9 from San Francisco Intl. to Seattle - Tacoma Intl., returning Wed, Jun 10, priced at $157 found 2 hours ago
Frontier Airlines
Tue, May 5 - Wed, May 13
DFW
Dallas-Fort Worth Intl.
SEA
Seattle - Tacoma Intl.
$163 Roundtrip, found 2 hours ago
$163
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, May 5 from Dallas-Fort Worth Intl. to Seattle - Tacoma Intl., returning Wed, May 13, priced at $163 found 2 hours ago
Alaska Airlines
Wed, May 13 - Tue, May 26
LAX
Los Angeles Intl.
PAE
Seattle Paine Field Intl. Airport
$180 Roundtrip, just found
$180
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, May 13 from Los Angeles Intl. to Seattle Paine Field Intl. Airport, returning Tue, May 26, priced at $180 just found
American Airlines
Wed, May 13 - Tue, May 26
LAX
Los Angeles Intl.
SEA
Seattle - Tacoma Intl.
$180 Roundtrip, found 2 hours ago
$180
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, May 13 from Los Angeles Intl. to Seattle - Tacoma Intl., returning Tue, May 26, priced at $180 found 2 hours ago
Delta
Thu, May 7 - Tue, May 12
RSW
Southwest Florida Intl.
SEA
Seattle - Tacoma Intl.
$220 Roundtrip, found 1 day ago
$220
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, May 7 from Southwest Florida Intl. to Seattle - Tacoma Intl., returning Tue, May 12, priced at $220 found 1 day ago
Air Canada
Thu, May 28 - Tue, Jun 9
YYZ
Pearson Intl.
SEA
Seattle - Tacoma Intl.
$297 Roundtrip, found 14 hours ago
$297
Roundtrip
found 14 hours ago
Select Air Canada flight, departing Thu, May 28 from Pearson Intl. to Seattle - Tacoma Intl., returning Tue, Jun 9, priced at $297 found 14 hours ago
Alaska Airlines
Tue, May 5 - Tue, May 12
DFW
Dallas-Fort Worth Intl.
PAE
Seattle Paine Field Intl. Airport
$409 Roundtrip, found 1 hour ago
$409
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, May 5 from Dallas-Fort Worth Intl. to Seattle Paine Field Intl. Airport, returning Tue, May 12, priced at $409 found 1 hour ago
Sun Country Airlines
Sat, Jul 18 - Wed, Jul 22
DFW
Dallas-Fort Worth Intl.
SEA
Seattle - Tacoma Intl.
$423 Roundtrip, found 2 days ago
$423
Roundtrip
found 2 days ago
Select Sun Country Airlines flight, departing Sat, Jul 18 from Dallas-Fort Worth Intl. to Seattle - Tacoma Intl., returning Wed, Jul 22, priced at $423 found 2 days ago
WestJet
Thu, May 7 - Wed, May 13
YYZ
Pearson Intl.
SEA
Seattle - Tacoma Intl.
$429 Roundtrip, found 13 hours ago
$429
Roundtrip
found 13 hours ago
Select WestJet flight, departing Thu, May 7 from Pearson Intl. to Seattle - Tacoma Intl., returning Wed, May 13, priced at $429 found 13 hours ago
Delta
Sat, Apr 25 - Mon, May 11
DAL
Love Field
SEA
Seattle - Tacoma Intl.
$449 Roundtrip, found 1 day ago
$449
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Apr 25 from Love Field to Seattle - Tacoma Intl., returning Mon, May 11, priced at $449 found 1 day ago
JetBlue Airways
Sun, May 24 - Sat, Jun 6
RSW
Southwest Florida Intl.
SEA
Seattle - Tacoma Intl.
$533 Roundtrip, found 15 hours ago
$533
Roundtrip
found 15 hours ago
Select JetBlue Airways flight, departing Sun, May 24 from Southwest Florida Intl. to Seattle - Tacoma Intl., returning Sat, Jun 6, priced at $533 found 15 hours ago

Cheap Flights to Union

Fall in love at first flight with your vacation to Union by saving a ton of cash on your last-minute cheap flight. There’s no more scouring the internet for a good deal—book your flight to Union on Hotwire, and you’ll be up, up, and on a getaway in no time.

Because once the wheels are down in Union, the good times start rolling. So buckle up, you’re in for a fun ride.

Frequently Asked Questions About flights to Union

Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to Union with a tiny bag of pretzels in your hand before you can say “tray tables in the upright position”—and for a ticket price that works for your vacay budget.

So all you have to worry about is where you’re headed after the SEA airport.

What is the cheapest month to fly to Union?

Airline ticket prices fluctuate all the time, depending on the day of the week or the month of the year. The cheapest round trip flights to Union are in May, but when you book your flight on Hotwire, savings are always in season.

How many airlines fly to Union?

Variety is the spice of life, even when it comes to booking your next trip. Want options for airlines? You’ll find 15 to choose from for your flight to Union.

What airport is best to fly into Union?

When you’re planning your trip to Union, convenience is the name of the game. Luckily, Union Seattle - Tacoma Intl. Airport is nearby so you can deplane and get going on checking off everything on your Union must-do list.

How much are flights to Union?

Got very cheap flights on your vacation itinerary? When you book your airline tickets to Union on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $61, you’ll have leftover cash for at least a magazine and a bottle of water at the airport book store.

How to get cheap flights to Union?

The trick to saving a stack of cash on your flight to Union? Snatch up that Hotwire flight deal when you see a killer rate because it could be gone in a flash. And with flights as low as $61 right now, why wait?

Union Flight Information
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Roundtrip price
$61

Last Minute Hotel Deals in Union

Robinhood Village Resort

Robinhood Village Resort

2 out of 5
6790 WA-106 Union WA
Stay at this lodge in Union. Enjoy free WiFi, free parking, and a picnic area. Popular attractions Hood Canal Marina and Skokomish Wildlife Area Unit are located ...
8.4/10 Very Good! (29 reviews)
I have stayed here before and will be back again. It's a great place with cute cabins.

Reviewed on Apr 3, 2026

Get rates
Robinhood Village Resort
Little Creek Casino Resort

Little Creek Casino Resort

3.5 out of 5
91 W State Route 108 Shelton WA
Book a stay at this spa hotel in Shelton. Enjoy a full-service spa, 5 restaurants, and a golf course. Our guests praise the helpful staff and the clean rooms ...
8.8/10 Excellent! (1,008 reviews)
Big comfy room… newly remodeled bathroom!

Reviewed on Apr 5, 2026

Get rates
Little Creek Casino Resort
Quality Inn Port Orchard

Quality Inn Port Orchard

2 out of 5
220 Bravo Terrace SE Port Orchard WA
Book a stay at this business-friendly hotel in Port Orchard. Enjoy free breakfast, free parking, and room service. Our guests praise the breakfast and the helpful ...
8.6/10 Excellent! (280 reviews)
Very clean, better than expected breakfast. The hot tub was undergoing repairs. Otherwise, I would given top marks.

Reviewed on Apr 9, 2026

Get rates
Quality Inn Port Orchard
DoubleTree by Hilton Olympia Downtown Capitol District

DoubleTree by Hilton Olympia Downtown Capitol District

4 out of 5
415 Capitol Way N Olympia WA
Book a stay at this business-friendly hotel in Olympia. Enjoy breakfast (surcharge), room service, and a 24-hour fitness center. Our guests praise the helpful ...
8.4/10 Very Good! (1,003 reviews)
Nice place

Reviewed on Apr 9, 2026

Get rates
DoubleTree by Hilton Olympia Downtown Capitol District
The Glen Resort

The Glen Resort

2 out of 5
25381 U.S. 101 Hoodsport WA
Book a stay at this beach hotel in Hoodsport. Enjoy free WiFi, free parking, and a beach locale. Popular attractions Sunshine Creations Northwest and The Hardware ...
9.6/10 Exceptional! (100 reviews)
Cute little place, it was clean. A bit pricey for what you get. The bed we slept on was a little hard and not that comfortable. The hot tub was always full so didn't get a chance to go in that.... The experience was good I would def stay there again

Reviewed on Apr 10, 2026

Get rates
The Glen Resort
TownePlace Suites Olympia

TownePlace Suites Olympia

3 out of 5
900 Capitol Way South Olympia WA
Book a stay at this business-friendly hotel in Olympia. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. ...
9/10 Wonderful! (298 reviews)
Well maintained hotel in the heart of Olympia. Very close to our favorite restaurants. Neighborhood is a little shabby, but safe. Soundproofing seemed excellent, as we couldn't hear the crying baby in the next room from our room, even though we could in the hall.

Reviewed on Apr 9, 2026

Get rates
TownePlace Suites Olympia
Best Western Wesley Inn & Suites

Best Western Wesley Inn & Suites

2.5 out of 5
6575 Kimball Drive Gig Harbor WA
Book a stay at this business-friendly hotel in Gig Harbor. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
9/10 Wonderful! (929 reviews)
Staff was not helpful. Not friendly.

Reviewed on Mar 16, 2026

Get rates
Best Western Wesley Inn & Suites
Belfair Motel

Belfair Motel

2 out of 5
23322 Northeast Highway 3 Belfair WA
Stay at this motel in Belfair. Enjoy free WiFi, free parking, and laundry facilities. Our guests praise the helpful staff and the clean rooms in our reviews. ...
9/10 Wonderful! (513 reviews)
Room had mold in it, shower head exploded when turned on almost hit my husband in the head. Staff was nice offered to put showerhead back & said they would get the mold clean. property on the outside is decent

Reviewed on Apr 7, 2026

Get rates
Belfair Motel
See all 779 properties in Union
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.