Cheap flights from Index

View AU$106 flight on Wed, 17 Sep. 2025Opens in a new window

Popular airlines from Index

  • Alaska Airlines

    Alaska Airlines

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Air Canada

    Air Canada

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheapest flights from Index

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
Sat, 11 Oct. - Sat, 18 Oct.
PAE
Seattle
SFO
San Francisco
AU$211 Return, found 12 hours ago
AU$211
Return
found 12 hours ago
Select Alaska Airlines flight, departing Sat, 11 Oct. from Seattle to San Francisco, returning Sat, 18 Oct., priced at AU$211 found 12 hours ago
Delta
Sat, 11 Oct. - Sat, 18 Oct.
SEA
Seattle
SFO
San Francisco
AU$213 Return, found 12 hours ago
AU$213
Return
found 12 hours ago
Select Delta flight, departing Sat, 11 Oct. from Seattle to San Francisco, returning Sat, 18 Oct., priced at AU$213 found 12 hours ago
Hawaiian Airlines
Sat, 13 Sep. - Tue, 23 Sep.
SEA
Seattle
SFO
San Francisco
AU$214 Return, found 4 days ago
AU$214
Return
found 4 days ago
Select Hawaiian Airlines flight, departing Sat, 13 Sep. from Seattle to San Francisco, returning Tue, 23 Sep., priced at AU$214 found 4 days ago
Alaska Airlines
Wed, 8 Oct. - Wed, 15 Oct.
PAE
Seattle
SFO
San Francisco
AU$214 Return, found 3 days ago
AU$214
Return
found 3 days ago
Select Alaska Airlines flight, departing Wed, 8 Oct. from Seattle to San Francisco, returning Wed, 15 Oct., priced at AU$214 found 3 days ago
Alaska Airlines
Sat, 11 Oct. - Sat, 18 Oct.
SEA
Seattle
SFO
San Francisco
AU$228 Return, found 12 hours ago
AU$228
Return
found 12 hours ago
Select Alaska Airlines flight, departing Sat, 11 Oct. from Seattle to San Francisco, returning Sat, 18 Oct., priced at AU$228 found 12 hours ago
Delta
Sat, 11 Oct. - Sat, 18 Oct.
SEA
Seattle
SFO
San Francisco
AU$229 Return, found 12 hours ago
AU$229
Return
found 12 hours ago
Select Delta flight, departing Sat, 11 Oct. from Seattle to San Francisco, returning Sat, 18 Oct., priced at AU$229 found 12 hours ago
Delta
Mon, 22 Sep. - Wed, 24 Sep.
SEA
Seattle
SFO
San Francisco
AU$230 Return, found 2 days ago
AU$230
Return
found 2 days ago
Select Delta flight, departing Mon, 22 Sep. from Seattle to San Francisco, returning Wed, 24 Sep., priced at AU$230 found 2 days ago
Alaska Airlines
Sat, 1 Nov. - Fri, 7 Nov.
SEA
Seattle
LAS
Las Vegas
AU$232 Return, found 2 days ago
AU$232
Return
found 2 days ago
Select Alaska Airlines flight, departing Sat, 1 Nov. from Seattle to Las Vegas, returning Fri, 7 Nov., priced at AU$232 found 2 days ago
American Airlines
Sat, 8 Nov. - Sat, 15 Nov.
SEA
Seattle
LAX
Los Angeles
AU$245 Return, found 5 days ago
AU$245
Return
found 5 days ago
Select American Airlines flight, departing Sat, 8 Nov. from Seattle to Los Angeles, returning Sat, 15 Nov., priced at AU$245 found 5 days ago
United
Sat, 11 Oct. - Sat, 18 Oct.
SEA
Seattle
SFO
San Francisco
AU$320 Return, found 12 hours ago
AU$320
Return
found 12 hours ago
Select United flight, departing Sat, 11 Oct. from Seattle to San Francisco, returning Sat, 18 Oct., priced at AU$320 found 12 hours ago

Flights from Index: Essential Travel Information

Cheapest flight from Index
AU$211 (roundtrip)
Best airlines to fly from Index
Alaska Airlines, Delta, Hawaiian Airlines, American Airlines, United
Cheapest month to fly from Index
October
Index IATA code
null
Index Country/State
Washington
Airline ticket deals from Index
AU$211 - AU$320
*Available to Expedia members.