Cheap Flights from Union from ฿2,645

View ฿2,645 flight on Sat, 5 Sept 2026Opens in a new window

Popular airlines from Union

  • Alaska Airlines

  • American Airlines

  • United

  • Delta

  • Southwest Airlines

  • Air Canada

  • Frontier Airlines

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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.

Delta
Sat, 5 Sept - Sun, 6 Sept
SEA
Seattle
SAN
San Diego
฿5,290 Return, found 1 day ago
฿5,290
Return
found 1 day ago
Select Delta flight, departing Sat, 5 Sept from Seattle to San Diego, returning Sun, 6 Sept, priced at ฿5,290 found 1 day ago
Delta
Sat, 5 Sept - Sat, 12 Sept
SEA
Seattle
SFO
San Francisco
฿5,860 Return, found 3 days ago
฿5,860
Return
found 3 days ago
Select Delta flight, departing Sat, 5 Sept from Seattle to San Francisco, returning Sat, 12 Sept, priced at ฿5,860 found 3 days ago
Southwest Airlines
Sat, 5 Sept - Sun, 6 Sept
SEA
Seattle
SAN
San Diego
฿5,940 Return, found 1 day ago
฿5,940
Return
found 1 day ago
Select Southwest Airlines flight, departing Sat, 5 Sept from Seattle to San Diego, returning Sun, 6 Sept, priced at ฿5,940 found 1 day ago
Delta
Sun, 6 Sept - Sat, 12 Sept
SEA
Seattle
SAN
San Diego
฿5,960 Return, found 1 day ago
฿5,960
Return
found 1 day ago
Select Delta flight, departing Sun, 6 Sept from Seattle to San Diego, returning Sat, 12 Sept, priced at ฿5,960 found 1 day ago
Delta
Sat, 19 Sept - Tue, 22 Sept
SEA
Seattle
SFO
San Francisco
฿6,425 Return, found 4 days ago
฿6,425
Return
found 4 days ago
Select Delta flight, departing Sat, 19 Sept from Seattle to San Francisco, returning Tue, 22 Sept, priced at ฿6,425 found 4 days ago
Delta
Sat, 5 Sept - Sun, 6 Sept
SEA
Seattle
SAN
San Diego
฿6,625 Return, found 1 day ago
฿6,625
Return
found 1 day ago
Select Delta flight, departing Sat, 5 Sept from Seattle to San Diego, returning Sun, 6 Sept, priced at ฿6,625 found 1 day ago
Delta
Sat, 17 Oct - Sat, 24 Oct
SEA
Seattle
SAN
San Diego
฿6,630 Return, found 1 day ago
฿6,630
Return
found 1 day ago
Select Delta flight, departing Sat, 17 Oct from Seattle to San Diego, returning Sat, 24 Oct, priced at ฿6,630 found 1 day ago
United
Sat, 26 Sept - Tue, 29 Sept
SEA
Seattle
LAX
Los Angeles
฿8,310 Return, found 7 hours ago
฿8,310
Return
found 7 hours ago
Select United flight, departing Sat, 26 Sept from Seattle to Los Angeles, returning Tue, 29 Sept, priced at ฿8,310 found 7 hours ago
Alaska Airlines
Sat, 19 Sept - Tue, 22 Sept
PAE
Seattle
SFO
San Francisco
฿9,890 Return, found 4 days ago
฿9,890
Return
found 4 days ago
Select Alaska Airlines flight, departing Sat, 19 Sept from Seattle to San Francisco, returning Tue, 22 Sept, priced at ฿9,890 found 4 days ago
American Airlines
Sat, 19 Sept - Tue, 22 Sept
SEA
Seattle
SFO
San Francisco
฿10,225 Return, found 4 days ago
฿10,225
Return
found 4 days ago
Select American Airlines flight, departing Sat, 19 Sept from Seattle to San Francisco, returning Tue, 22 Sept, priced at ฿10,225 found 4 days ago

Travel information

Flights from Union: Essential Travel Information

Cheapest flight from Union
฿5,290 (roundtrip)
Best airlines to fly from Union
Delta, Southwest Airlines, United, American Airlines, Alaska Airlines
Cheapest month to fly from Union
September
Union IATA code
SEA
Union Country/State
Washington
Airline ticket deals from Union
฿5,290 - ฿10,225

 

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