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Cheap flights from Seattle to Colombo from $359

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Colombo departing on 4/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Colombo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
10:15 am - 10:15 am
SEA
-
CMB
35h 30m
1 stop
Singapore Airlines Logo
12:50 am - 8:45 am
CMB
-
SEA
20h 25m
1 stop
$641Singapore Airlines
Sun, Apr 12 - Mon, Apr 27
Singapore Airlines Logo
10:15 am - 10:45 am
SEA
-
CMB
36h 00m
1 stop
Singapore Airlines Logo
12:50 am - 8:45 am
CMB
-
SEA
20h 25m
1 stop
$647Singapore Airlines
Thu, May 28 - Thu, Jun 18
Cathay Pacific Logo
11:45 am - 11:45 pm
SEA
-
CMB
23h 30m
1 stop
Cathay Pacific Logo
1:05 am - 10:05 am
CMB
-
SEA
21h 30m
1 stop
$854Cathay Pacific
Mon, Apr 13 - Tue, Apr 28
Singapore Airlines Logo
10:15 am - 10:45 am
SEA
-
CMB
36h 00m
1 stop
Singapore Airlines Logo
12:50 am - 8:45 am
CMB
-
SEA
20h 25m
1 stop
$862Singapore Airlines
Fri, Aug 21 - Fri, Sep 4
Cathay Pacific Logo
11:45 am - 11:45 pm
SEA
-
CMB
23h 30m
1 stop
Cathay Pacific Logo
1:05 am - 10:05 am
CMB
-
SEA
21h 30m
1 stop
$923Cathay Pacific
Tue, Apr 14 - Wed, Apr 22
Cathay Pacific Logo
11:45 am - 11:45 pm
SEA
-
CMB
23h 30m
1 stop
Cathay Pacific Logo
1:05 am - 10:05 am
CMB
-
SEA
21h 30m
1 stop
$929Cathay Pacific
Mon, Apr 6 - Sun, Apr 19
Cathay Pacific Logo
11:45 am - 11:45 pm
SEA
-
CMB
23h 30m
1 stop
Cathay Pacific Logo
1:05 am - 10:05 am
CMB
-
SEA
21h 30m
1 stop
$934Cathay Pacific
Tue, Apr 7 - Mon, Apr 13
Cathay Pacific Logo
8:41 am - 11:45 pm
SEA
-
CMB
26h 34m
2 stops
Cathay Pacific Logo
1:05 am - 10:05 am
CMB
-
SEA
21h 30m
1 stop
$947Cathay Pacific
Tue, Apr 14 - Sun, Apr 26
Cathay Pacific Logo
11:45 am - 11:45 pm
SEA
-
CMB
23h 30m
1 stop
Cathay Pacific Logo
1:05 am - 3:50 pm
CMB
-
SEA
27h 15m
2 stops
$952Cathay Pacific
Tue, Apr 14 - Wed, Apr 22
Cathay Pacific Logo
8:41 am - 11:45 pm
SEA
-
CMB
50h 34m
2 stops
Cathay Pacific Logo
1:05 am - 10:05 am
CMB
-
SEA
21h 30m
1 stop
$953Cathay Pacific
Sun, Apr 12 - Sun, Apr 26

Cathay Pacific flights from Seattle to Colombo

Our best Cathay Pacific deals on Seattle to Colombo flight tickets
Cathay Pacific
Apr 13
SEA11:45 amSeattle/Tacoma Intl
23h 30m
1 stop
CMB11:45 pmColombo Bandaranaike Intl
Apr 28
CMB1:05 amColombo Bandaranaike Intl
21h 30m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$854
Cathay Pacific
Apr 14
SEA11:45 amSeattle/Tacoma Intl
23h 30m
1 stop
CMB11:45 pmColombo Bandaranaike Intl
Apr 22
CMB1:05 amColombo Bandaranaike Intl
21h 30m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$923
Cathay Pacific
Apr 6
SEA11:45 amSeattle/Tacoma Intl
23h 30m
1 stop
CMB11:45 pmColombo Bandaranaike Intl
Apr 19
CMB1:05 amColombo Bandaranaike Intl
21h 30m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$929

Singapore Airlines flights from Seattle to Colombo

Our best Singapore Airlines deals on Seattle to Colombo flight tickets
Singapore Airlines
Apr 12
SEA10:15 amSeattle/Tacoma Intl
35h 30m
1 stop
CMB10:15 amColombo Bandaranaike Intl
Apr 27
CMB12:50 amColombo Bandaranaike Intl
20h 25m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$641
Singapore Airlines
May 28
SEA10:15 amSeattle/Tacoma Intl
36h 00m
1 stop
CMB10:45 amColombo Bandaranaike Intl
Jun 18
CMB12:50 amColombo Bandaranaike Intl
20h 25m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$647
Singapore Airlines
Aug 21
SEA10:15 amSeattle/Tacoma Intl
36h 00m
1 stop
CMB10:45 amColombo Bandaranaike Intl
Sep 4
CMB12:50 amColombo Bandaranaike Intl
20h 25m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$862

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Colombo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 22, 2026.
Use the filters below to find and compare flights from Seattle to Colombo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sun 4/12

10:15 am-10:15 am

1 stop35h 30m

Colombo Bandaranaike Intl

Mon 4/27

12:50 am-8:45 am

1 stop20h 25m

$641

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Thu 5/28

10:15 am-10:45 am

1 stop36h 00m

Colombo Bandaranaike Intl

Thu 6/18

12:50 am-8:45 am

1 stop20h 25m

$647

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Mon 4/13

11:45 am-11:45 pm

1 stop23h 30m

Colombo Bandaranaike Intl

Tue 4/28

1:05 am-10:05 am

1 stop21h 30m

$854

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Fri 8/21

10:15 am-10:45 am

1 stop36h 00m

Colombo Bandaranaike Intl

Fri 9/4

12:50 am-8:45 am

1 stop20h 25m

$862

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Tue 4/14

11:45 am-11:45 pm

1 stop23h 30m

Colombo Bandaranaike Intl

Wed 4/22

1:05 am-10:05 am

1 stop21h 30m

$923

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Mon 4/6

11:45 am-11:45 pm

1 stop23h 30m

Colombo Bandaranaike Intl

Sun 4/19

1:05 am-10:05 am

1 stop21h 30m

$929

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Tue 4/7

11:45 am-11:45 pm

1 stop23h 30m

Colombo Bandaranaike Intl

Mon 4/13

1:05 am-10:05 am

1 stop21h 30m

$934

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Tue 4/14

8:41 am-11:45 pm

2 stops26h 34m

Colombo Bandaranaike Intl

Sun 4/26

1:05 am-10:05 am

1 stop21h 30m

$947

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Tue 4/14

11:45 am-11:45 pm

1 stop23h 30m

Colombo Bandaranaike Intl

Wed 4/22

1:05 am-3:50 pm

2 stops27h 15m

$952

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sun 4/12

8:41 am-11:45 pm

2 stops50h 34m

Colombo Bandaranaike Intl

Sun 4/26

1:05 am-10:05 am

1 stop21h 30m

$953

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Colombo from

How to get the cheapest flight ticket from Seattle to Colombo

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Colombo?

The month of January is, on average, the cheapest month to fly to Colombo from Seattle, with most prices found around $780. If you are unable to visit Colombo during the month of January, then departing from Seattle during the month May is also very affordable. Most momondo users find prices during this month for around $824.

How far in advance should I book a flight to Colombo?

You are more likely to see cheaper flights to Colombo from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Colombo for around $1,142 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colombo from Seattle for as low as $741 on momondo.

Cheap Seattle to Colombo flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Colombo

Fastest flight time

26h 45m

Direct flights

None
The fastest flight from Seattle to Colombo takes 26h 45m
There are no direct flights from Seattle to Colombo. There are no popular flight routes from Seattle to Colombo.
Search flight deals

  • How far is Seattle/Tacoma Intl to Colombo by plane?

    The straight-line distance from Seattle/Tacoma Intl to Colombo is 8426.3 mi. In terms of flight time, this usually takes a little over 26h 45m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Colombo?

    Prices for flights from Seattle/Tacoma Intl Airport to Colombo are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Colombo?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Colombo?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Colombo.

  • What documentation or ID do you need to fly to Colombo?

    The travel and health documents you'll need for your trip to Colombo may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Colombo. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Seattle to Colombo

Compare and see reviews for airlines that fly from Seattle to Colombo with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $647Free CancellationRating
8.2
1,463 reviews
Search Singapore Airlines flights
China EasternPriceFrom $832Free CancellationRating
7.2
197 reviews
Search China Eastern flights
Turkish AirlinesPriceFrom $938Free CancellationRating
7.3
4,229 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,039Free CancellationRating
7.4
3,739 reviews
Search Qatar Airways flights
EmiratesPriceFrom $1,198Free CancellationRating
8.1
3,525 reviews
Search Emirates flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Colombo?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Colombo. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seattle to Colombo with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Colombo from Seattle with this policy.

How can momondo help me find flights from Seattle to Colombo?

Once you have performed a search for Seattle to Colombo flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Seattle to Colombo right now. Can momondo alert me if prices change?

Price alerts on flights to Colombo from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Colombo trip

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Find better results for your trip to Sri Lanka

Fly into one of these airports located in Colombo

Airports listed have a maximum distance of 17.4 mi from Colombo
Colombo Bandaranaike Intl Airport
Colombo Diyawanna Oya Seaplane Base Airport