Cheap Flights from Union from ฿1,535

View ฿1,535 flight on Mon, 20 Apr 2026Opens in a new window

Flight 1

Popular airlines from Union

  • Alaska Airlines

  • Delta

  • United

  • American Airlines

  • Southwest Airlines

  • Frontier Airlines

  • Air Canada

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Cheapest flights from Union

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

Alaska Airlines
Mon, 20 Apr - Wed, 22 Apr
SEA
Seattle
SFO
San Francisco
฿3,060 Return, found 1 day ago
฿3,060
Return
found 1 day ago
Select Alaska Airlines flight, departing Mon, 20 Apr from Seattle to San Francisco, returning Wed, 22 Apr, priced at ฿3,060 found 1 day ago
Delta
Tue, 7 Apr - Wed, 15 Apr
SEA
Seattle
DEN
Denver
฿3,060 Return, found 2 days ago
฿3,060
Return
found 2 days ago
Select Delta flight, departing Tue, 7 Apr from Seattle to Denver, returning Wed, 15 Apr, priced at ฿3,060 found 2 days ago
Delta
Tue, 31 Mar - Sat, 4 Apr
SEA
Seattle
LAS
Las Vegas
฿3,060 Return, found 2 days ago
฿3,060
Return
found 2 days ago
Select Delta flight, departing Tue, 31 Mar from Seattle to Las Vegas, returning Sat, 4 Apr, priced at ฿3,060 found 2 days ago
Delta
Mon, 6 Apr - Wed, 8 Apr
SEA
Seattle
LAS
Las Vegas
฿3,675 Return, found 4 hours ago
฿3,675
Return
found 4 hours ago
Select Delta flight, departing Mon, 6 Apr from Seattle to Las Vegas, returning Wed, 8 Apr, priced at ฿3,675 found 4 hours ago
Delta
Mon, 30 Mar - Mon, 6 Apr
SEA
Seattle
DEN
Denver
฿3,695 Return, found 1 day ago
฿3,695
Return
found 1 day ago
Select Delta flight, departing Mon, 30 Mar from Seattle to Denver, returning Mon, 6 Apr, priced at ฿3,695 found 1 day ago
Alaska Airlines
Thu, 16 Apr - Sat, 18 Apr
SEA
Seattle
SFO
San Francisco
฿4,005 Return, found 1 day ago
฿4,005
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 16 Apr from Seattle to San Francisco, returning Sat, 18 Apr, priced at ฿4,005 found 1 day ago
Alaska Airlines
Tue, 7 Apr - Wed, 8 Apr
PAE
Seattle
LAS
Las Vegas
฿4,145 Return, found 4 hours ago
฿4,145
Return
found 4 hours ago
Select Alaska Airlines flight, departing Tue, 7 Apr from Seattle to Las Vegas, returning Wed, 8 Apr, priced at ฿4,145 found 4 hours ago
Delta
Sat, 18 Apr - Mon, 20 Apr
SEA
Seattle
SFO
San Francisco
฿4,165 Return, found 1 day ago
฿4,165
Return
found 1 day ago
Select Delta flight, departing Sat, 18 Apr from Seattle to San Francisco, returning Mon, 20 Apr, priced at ฿4,165 found 1 day ago
United
Thu, 7 May - Thu, 14 May
SEA
Seattle
SFO
San Francisco
฿5,235 Return, found 13 hours ago
฿5,235
Return
found 13 hours ago
Select United flight, departing Thu, 7 May from Seattle to San Francisco, returning Thu, 14 May, priced at ฿5,235 found 13 hours ago
American Airlines
Sat, 16 May - Tue, 19 May
SEA
Seattle
SFO
San Francisco
฿7,740 Return, found 18 hours ago
฿7,740
Return
found 18 hours ago
Select American Airlines flight, departing Sat, 16 May from Seattle to San Francisco, returning Tue, 19 May, priced at ฿7,740 found 18 hours ago

Travel information

Flights from Union: Essential Travel Information

Cheapest flight from Union
฿3,060 (roundtrip)
Best airlines to fly from Union
Alaska Airlines, Delta, United, American Airlines
Cheapest month to fly from Union
April
Union IATA code
SEA
Union Country/State
Washington
Airline ticket deals from Union
฿3,060 - ฿7,740

 

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