HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Colombo

$359+ Cheap flights from Seattle (SEA) to Bandaranaike Intl (CMB)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CMB
Mar 25 — Apr 11
Wed 3/25
Wed 4/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Colombo with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to Colombo

Cheapest flights from Seattle to Colombo
Explore the most affordable flight options available from Seattle to Colombo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2026.

This FlightHub deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:15 am
SEA
-
CMB
1 stop24h 50m
Singapore Airlines
Mon 10/1212:50 am
CMB
-
SEA
1 stop20h 25m
Singapore Airlines
Deal found 2/20$612
This FlightHub deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1210:15 am
SEA
-
CMB
1 stop35h 30m
Singapore Airlines
Mon 4/2712:50 am
CMB
-
SEA
1 stop20h 25m
Singapore Airlines
Deal found 2/21$641
This Justfly.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:15 am
SEA
-
CMB
1 stop36h 00m
Singapore Airlines
Thu 6/1812:50 am
CMB
-
SEA
1 stop20h 25m
Singapore Airlines
Deal found 2/21$647
This FlightHub deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:15 am
SEA
-
CMB
1 stop24h 50m
Singapore Airlines
Sat 10/2412:50 am
CMB
-
SEA
1 stop19h 50m
Singapore Airlines
Deal found 2/20$792
This KAYAK deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1311:45 am
SEA
-
CMB
1 stop23h 30m
Cathay Pacific
Tue 4/281:05 am
CMB
-
SEA
1 stop21h 30m
Cathay Pacific
Deal found 2/21$854
This Justfly.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:15 am
SEA
-
CMB
1 stop36h 00m
Singapore Airlines
Fri 9/412:50 am
CMB
-
SEA
1 stop20h 25m
Singapore Airlines
Deal found 2/19$862
This KAYAK deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:25 pm
SEA
-
CMB
1 stop22h 35m
Cathay Pacific
Sun 9/612:50 am
CMB
-
SEA
1 stop22h 00m
Cathay Pacific
Deal found 2/21$904
This KAYAK deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/611:45 am
SEA
-
CMB
1 stop23h 30m
Cathay Pacific
Mon 4/201:05 am
CMB
-
SEA
1 stop21h 30m
Cathay Pacific
Deal found 2/20$929
This Gurufare deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:45 am
SEA
-
CMB
1 stop23h 30m
Cathay Pacific
Mon 4/131:05 am
CMB
-
SEA
1 stop21h 30m
Cathay Pacific
Deal found 2/21$934
This KAYAK deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:41 am
SEA
-
CMB
2 stops26h 34m
Cathay Pacific
Sun 4/261:05 am
CMB
-
SEA
1 stop21h 30m
Cathay Pacific
Deal found 2/21$947
This KAYAK deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:15 am
SEA
-
CMB
1 stop24h 50m
Multiple Airlines
Mon 10/1212:50 am
CMB
-
SEA
3 stops29h 37m
Multiple Airlines
Deal found 2/20$952
This FlightHub deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:51 pm
SEA
-
CMB
2 stops39h 24m
Cathay Pacific
Mon 4/271:05 am
CMB
-
SEA
1 stop21h 30m
Cathay Pacific
Deal found 2/21$953

Find flight deals from Seattle to Colombo

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Colombo (CMB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$641
(FlightHub)

One-way from

$359
(FlightHub)

Popular in

December

Cheapest in

January

Average price

$1,086
Provider with most accurate pricing for Seattle/Tacoma Intl-Colombo Bandaranaike Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Colombo Bandaranaike Intl flights.
Search Deals
From Seattle/Tacoma Intl to Colombo Bandaranaike Intl
Search Deals
One-way flight from Seattle/Tacoma Intl to Colombo Bandaranaike Intl
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated February 23, 2026.
Use the filters below to find and compare flights from Seattle to Colombo Bandaranaike Intl Airport that are best for you.

Fly from

Seattle

Fly to

Colombo

Route

Depart

Return

Price

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Thu 4/9

11:45 am-11:45 pm

1 stop23h 30m

Colombo Bandaranaike Intl

Sun 4/19

1:05 am-11:02 am

2 stops46h 27m

$1,068

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sun 3/15

5:50 pm-11:30 pm

2 stops41h 10m

Colombo Bandaranaike Intl

Wed 3/25

12:45 am-3:52 pm

2 stops51h 37m

$1,157

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Wed 4/8

4:25 pm-9:00 am

1 stop28h 05m

Colombo Bandaranaike Intl

Sun 4/19

7:15 pm-12:45 pm

1 stop30h 00m

$1,166

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Fri 4/10

5:15 pm-6:30 pm

2 stops36h 45m

Colombo Bandaranaike Intl

Fri 5/1

11:15 am-1:25 pm

2 stops38h 40m

$1,254

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Fri 3/6

4:05 pm-8:20 am

1 stop26h 45m

Colombo Bandaranaike Intl

Mon 3/9

8:15 pm-1:35 pm

2 stops53h 50m

$1,301

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Thu 3/12

5:05 pm-6:25 pm

2 stops36h 50m

Colombo Bandaranaike Intl

Fri 3/27

8:15 pm-1:25 pm

2 stops53h 40m

$1,360

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sat 3/21

9:15 pm-11:30 pm

2 stops37h 45m

Colombo Bandaranaike Intl

Sat 3/28

12:45 am-9:04 pm

2 stops32h 49m

$1,404

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sun 3/22

5:05 pm-3:55 pm

1 stop34h 20m

Colombo Bandaranaike Intl

Sun 3/29

8:35 pm-1:25 pm

2 stops53h 20m

$1,418

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sat 3/21

5:05 pm-9:55 pm

1 stop40h 20m

Colombo Bandaranaike Intl

Sun 3/29

11:20 am-1:25 pm

2 stops38h 35m

$1,489

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Tue 3/17

5:05 pm-1:55 am

1 stop20h 20m

Colombo Bandaranaike Intl

Wed 3/25

11:15 am-12:40 pm

1 stop37h 55m

$1,493

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 14 results
1
2

Compare providers for flights from Seattle to Colombo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Colombo in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Colombo Bandaranaike Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Colombo Bandaranaike Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Colombo Bandaranaike Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Colombo Bandaranaike Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Colombo Bandaranaike Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Colombo

Have a flexible travel schedule? Discover the best time to fly to Colombo from Seattle with our price prediction graph.
Estimated round-trip 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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Colombo Bandaranaike Intl Airport

How far ahead should I book a flight from Seattle to Colombo Bandaranaike Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Colombo. Price data was last updated on February 20, 2026.

The best time to book flights from Seattle to Colombo Bandaranaike Intl Airport is 66 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 to Colombo Bandaranaike Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Seattle to Colombo Bandaranaike Intl Airport (average of $595). Flying from Seattle to Colombo Bandaranaike Intl Airport in December is currently the most expensive (average of $1,130). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Colombo

Get insights into the airlines that provide service to Colombo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colombo. Reviews last updated February 23, 2026.
Read reviews from past customers who have flown Singapore Airlines, Emirates, and Qatar Airways from Seattle to Colombo Bandaranaike Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very good
1,463 reviews

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Singapore Airlines
8.2
Very good
1,463 reviews
Singapore Airlines
8.2
Very good
1,463 reviews

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Emirates
8.1
Very good
3,528 reviews
Singapore Airlines
8.2
Very good
1,463 reviews

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Qatar Airways
7.4
Good
3,742 reviews
Singapore Airlines
8.2
Very good
1,463 reviews

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Turkish Airlines
7.3
Good
4,233 reviews
Singapore Airlines
8.2
Very good
1,463 reviews

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
China Eastern
7.2
Good
197 reviews
Singapore Airlines
8.2
Very good
1,463 reviews

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Related info for your journey

Find useful and relevant information for your journey from Seattle to Colombo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Colombo Bandaranaike Intl?

    If you book a flight to Colombo Bandaranaike Intl from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 0 flights from Seattle/Tacoma Intl to Colombo Bandaranaike Intl per day from 5 different airlines.

  • How long is the flight from Seattle to Colombo Bandaranaike Intl Airport?

    Departing from Seattle to Colombo Bandaranaike Intl Airport will take you 23h 30m. The distance from Seattle to Colombo Bandaranaike Intl Airport is about 8420 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Seattle to Colombo Bandaranaike Intl Airport round-trip?

    Flying on Singapore Airlines is currently your cheapest option to Colombo Bandaranaike Intl Airport, with prices starting at $647. Additional round-trip tickets that might be worth considering are offered by China Eastern and Turkish Airlines, with the lowest prices starting at $832 and $938, respectively. Users have found that Singapore Airlines is 43% cheaper than the other options available to this destination.

  • Can I find deals for flights from Seattle to Colombo that include hotel bookings?

    Yes. In addition to deals on Seattle to Colombo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Colombo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Colombo.

  • Can I find deals for business class flights from Seattle to Colombo?

    Yes. Cheapflights offers flight deals from Seattle to Colombo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Colombo Bandaranaike Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Seattle to Colombo Bandaranaike Intl Airport (average of $595). Flying from Seattle to Colombo Bandaranaike Intl Airport in December is currently the most expensive (average of $1,130). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Colombo Bandaranaike Intl Airport?

Book flights to Colombo Bandaranaike Intl Airport if you plan to visit one of these locations
Negombo

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Colombo

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Colombo flights

Top 5 airlines flying from Seattle to Colombo

Discover the top 5 airlines that operate flights from Seattle to Colombo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$647Average$1,017FlexibilityNo cancel feeOn-time81%
China EasternCheapest$832Average$961FlexibilityNo cancel feeOn-time62%
Turkish AirlinesCheapest$938Average$1,241FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,039Average$1,360FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,198Average$1,350FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.