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$166+ Cheap flights from Seattle

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — SYD
22 Mar — 29 Mar1
1 adult
1 adult, Economy, 0 bags

What to know about flights from Seattle

Discover essential information about flights departing from Seattle, including flight schedules, destinations, airlines operating at the Seattle airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 20 February 2026.

Cheapest airline

United Airlines

Good round-trip deal

$120 or less

Good one-way deal

$110 or less
On average, United Airlines currently has the cheapest one-way flight from Seattle/Tacoma Intl (avg. price of $1,927).
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Price to beat on a round-trip flight from Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Seattle/Tacoma Intl.
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Find flights from Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Seattle
Explore the most affordable flight options available from Seattle. Find the lowest fares based on data from user searches, with prices last updated on 20 February 2026.

Tue 3/315:40
SEA
-
BNE
1 stop23h 05m
Air Canada
Fri 6/310:45
BNE
-
SEA
1 stop22h 16m
Air Canada
Deal found 17/2$1,064
Tue 10/320:00
SEA
-
BNE
1 stop18h 45m
Air Canada
Sun 10/510:00
BNE
-
SEA
1 stop16h 15m
Air Canada
Deal found 19/2$1,066
Sun 8/320:00
SEA
-
BNE
2 stops32h 50m
Multiple Airlines
Fri 13/309:45
BNE
-
SEA
1 stop16h 50m
Multiple Airlines
Deal found 17/2$1,110
Thu 19/320:00
SEA
-
BNE
2 stops42h 30m
Multiple Airlines
Wed 29/410:00
BNE
-
SEA
1 stop26h 20m
Multiple Airlines
Deal found 16/2$1,118
Wed 4/315:40
SEA
-
BNE
1 stop23h 05m
Air Canada
Sat 7/310:45
BNE
-
SEA
1 stop22h 16m
Air Canada
Deal found 18/2$1,180
Wed 29/415:40
SEA
-
BNE
1 stop22h 25m
Air Canada
Sun 10/510:00
BNE
-
SEA
1 stop16h 15m
Air Canada
Deal found 19/2$1,196
Tue 10/310:10
SEA
-
BNE
1 stop28h 35m
Multiple Airlines
Sun 10/520:40
BNE
-
SEA
2 stops29h 35m
Multiple Airlines
Deal found 18/2$1,205
Thu 5/320:00
SEA
-
BNE
1 stop18h 45m
Multiple Airlines
Sun 8/322:55
BNE
-
SEA
2 stops27h 40m
Multiple Airlines
Deal found 19/2$1,206
Tue 21/420:00
SEA
-
MEL
2 stops22h 20m
Multiple Airlines
Thu 30/406:00
MEL
-
SEA
2 stops20h 35m
Multiple Airlines
Deal found 19/2$1,283
Mon 1/607:00
SEA
-
SYD
1 stop30h 55m
United Airlines
Mon 29/610:20
SYD
-
SEA
1 stop24h 47m
United Airlines
Deal found 19/2$1,283
Sun 14/617:20
SEA
-
SYD
1 stop20h 35m
United Airlines
Tue 30/609:30
SYD
-
SEA
1 stop22h 06m
United Airlines
Deal found 19/2$1,294
Sun 19/417:59
SEA
-
SYD
1 stop19h 51m
Delta
Mon 11/509:15
SYD
-
SEA
1 stop28h 15m
Delta
Deal found 19/2$1,295

Find flights from Seattle within your budget

 
Find flights departing from Seattle that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 20 February 2026. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Sydney

Route

Depart

Return

Price

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Thu 5/3

20:00-08:45

1 stop18h 45m

Brisbane

Sun 8/3

10:45-21:57

1 stop29h 12m

$1,064

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Tue 10/3

10:10-07:45

1 stop28h 35m

Brisbane

Sun 10/5

20:40-09:15

2 stops29h 35m

$1,161

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Thu 5/3

20:00-08:45

1 stop18h 45m

Brisbane

Sun 8/3

22:55-09:35

2 stops27h 40m

$1,206

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Tue 28/4

15:40-07:05

1 stop22h 25m

Brisbane

Sun 10/5

10:00-18:30

1 stop25h 30m

$1,213

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Tue 31/3

20:00-11:05

2 stops22h 05m

Brisbane

Tue 7/4

20:40-09:35

2 stops29h 55m

$1,233

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 29/3

09:40-07:50

1 stop28h 10m

Sydney Kingsford Smith

Sun 19/4

09:15-18:26

1 stop26h 11m

$1,295

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 6/4

09:40-06:50

1 stop28h 10m

Sydney Kingsford Smith

Mon 20/4

09:15-18:26

1 stop26h 11m

$1,295

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 6/4

13:30-06:50

1 stop24h 20m

Sydney Kingsford Smith

Sun 19/4

09:15-23:59

2 stops31h 44m

$1,301

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 19/4

11:10-06:50

2 stops26h 40m

Sydney Kingsford Smith

Mon 11/5

09:15-10:38

1 stop18h 23m

$1,301

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 5/4

17:55-06:50

1 stop19h 55m

Sydney Kingsford Smith

Sun 19/4

09:15-23:59

2 stops31h 44m

$1,301

Flights are sorted by cheapest return flights first.

Deals found on 16/2

Showing 1-10 of 60 results
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Best time to book a flight from Seattle

Have a flexible travel schedule? Discover the best time to fly from Seattle with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle

Get recent, data-driven insights about flights from Seattle including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Seattle?

Use this chart to determine the optimal time to book a return flight from Seattle to Sydney. Price data was last updated on 18 February 2026.

The best time to book flights from Seattle is 24 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle?

Currently, July is the cheapest month in which you can book a flight from Seattle (average of $703). Flying from Seattle in December will prove the most costly (average of $1,197). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Seattle?

When flying from Seattle check dates and pricing for the following: United Airlines, Air Canada. As they depart for the following popular destinations: Sydney.

United Airlines
United Airlines
From $1,132
Air Canada
Air Canada
From $612
Delta
Delta
From $1,106

What are popular destinations to fly to from Seattle?

Seattle offers frequent flights to Los Angeles (605 flights per day), San Francisco (419 flights per day) and Vancouver (391 flights per day).

Los Angeles
Los Angeles
From $110
San Francisco
San Francisco
From $79
Vancouver Intl
Vancouver Intl
From $98
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From $97

What is the cheapest place to fly to from Seattle?

The cheapest city to fly to from Seattle is Bend/Redmond, with prices starting at $73. Explore other affordable destinations below.

Bend/Redmond
Bend/Redmond
From $73
San Francisco
San Francisco
From $79
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From $97
Vancouver Intl
Vancouver Intl
From $98

Airline reviews for flights from Seattle

Get insights into the airlines that provide service from Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Seattle. In the last 7 days, Cheapflights users made a total of 647,157 searches.
See what other customers who have flown with United Airlines and Air Canada from Seattle have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,325 reviews
Check prices

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,325 reviews
United Airlines
7.4
Good
9,325 reviews
Check prices

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Air Canada
7.1
Good
10,732 reviews
United Airlines
7.4
Good
9,325 reviews
Check prices

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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Direct flights from Washington

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Related info for your journey

Access useful and relevant information related to your journey from Seattle. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 20 February 2026.

  • What are the most popular destinations to fly to from Seattle?

    For the current month, the most popular flights from Seattle are Bangkok Suvarnabhumi Airport, Atlanta, Austin. Boston, Bangkok Suvarnabhumi Airport, Mumbai are the most popular locations from Seattle year round.

  • What is the cheapest flight from Seattle to anywhere?

    Users have flown out of Seattle for as low as $73 to Redmond (prices may vary depending on the airline and departure time). On average, users have booked flights for $1,094 to fly from Seattle.

  • What are the cheapest airlines flying from Seattle to anywhere?

    According to our data, users have found Air Canada, Delta, and United Airlines to have the cheapest round-trip prices from Seattle. Some of the destinations and prices are as follows: Air Canada flights from Seattle to Brisbane ($612). Delta flights from Seattle to Marrakech Menara ($1,106). United Airlines flights from Seattle to Melbourne ($1,132).

  • What is the cheapest premium economy flight from Seattle?

    Options for some of the cheapest premium economy flights from Seattle we have found on Cheapflights are as follows:
    Fly from Seattle/Tacoma Intl to Ontario starting at $648
    Fly from Seattle/Tacoma Intl to Palm Springs starting at $775
    Fly from Seattle/Tacoma Intl to Cincinnati starting at $910
    Fly from Seattle/Tacoma Intl to Fort Lauderdale starting at $1,157

  • What is the cheapest month to fly from Seattle?

    Currently, the cheapest month for flights from Seattle is July. The most expensive month for flights is December. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • Where are the cheapest places to fly to from Seattle?

    View the cheapest flight destinations from Seattle:
    Fly from Seattle to Melbourne from $1,185 round trip
    Fly from Seattle to Sydney from $1,186 round trip

  • How does Cheapflights help users find flights from Seattle?

    Cheapflights helps you search for flights from Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

  • Why should you use Cheapflights to find cheap flight tickets from Seattle?

    Cheapflights helps you find that perfect flight from Seattle by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

  • Can Cheapflights find flights from Seattle with no change fees?

    Certainly. Search results for flights from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

  • Can Cheapflights notify me if prices for flights from Seattle become cheaper?

    Yes, Cheapflights offers price alerts on flights from Seattle so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle?

Cheapflights helps you search for flights from Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Seattle?

Cheapflights helps you find that perfect flight from Seattle by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Seattle with no change fees?

Certainly. Search results for flights from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seattle become cheaper?

Yes, Cheapflights offers price alerts on flights from Seattle so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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