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Colombo

$427+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CMB
May 11 — May 181
Mon 5/11
Mon 5/18
1 adult, Economy
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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 April 11, 2026.

This Indian Eagle deal was found by Cheapflights users on 4/6. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:05 pm
SEA
-
CMB
1 stop21h 10m
Qatar Airways
Mon 11/164:15 am
CMB
-
SEA
1 stop20h 55m
Qatar Airways
Deal found 4/6$1,113
This Indian Eagle deal was found by Cheapflights users on 4/9. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:45 am
SEA
-
CMB
1 stop25h 15m
Singapore Airlines
Mon 11/3012:45 am
CMB
-
SEA
1 stop19h 55m
Singapore Airlines
Deal found 4/9$1,115
This oojo deal was found by Cheapflights users on 4/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/54:25 pm
SEA
-
CMB
1 stop21h 10m
Qatar Airways
Sun 10/183:35 am
CMB
-
SEA
1 stop21h 20m
Qatar Airways
Deal found 4/9$1,121
This FlightHub deal was found by Cheapflights users on 4/9. 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.
Mon 10/54:25 pm
SEA
-
CMB
1 stop22h 10m
Multiple Airlines
Mon 10/194:35 am
CMB
-
SEA
2 stops30h 08m
Multiple Airlines
Deal found 4/9$1,137
This FlightHub deal was found by Cheapflights users on 4/9. 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.
Tue 11/38:10 am
SEA
-
CMB
2 stops28h 15m
Qatar Airways
Mon 11/304:15 am
CMB
-
SEA
1 stop20h 55m
Qatar Airways
Deal found 4/9$1,139
This FlightHub deal was found by Cheapflights users on 4/6. 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.
Thu 11/58:10 am
SEA
-
CMB
2 stops29h 05m
Multiple Airlines
Mon 11/163:25 am
CMB
-
SEA
2 stops29h 01m
Multiple Airlines
Deal found 4/6$1,157
This oojo deal was found by Cheapflights users on 4/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/95:15 pm
SEA
-
CMB
1 stop40h 25m
Emirates
Thu 7/210:05 am
CMB
-
SEA
1 stop39h 50m
Emirates
Deal found 4/9$1,166
This Qatar Airways deal was found by Cheapflights users on 4/7. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:25 pm
SEA
-
CMB
1 stop21h 10m
Qatar Airways
Mon 9/148:20 pm
CMB
-
SEA
1 stop28h 35m
Qatar Airways
Deal found 4/7$1,200
This oojo deal was found by Cheapflights users on 4/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:15 pm
SEA
-
CMB
1 stop40h 25m
Emirates
Sat 5/910:05 am
CMB
-
SEA
1 stop39h 50m
Emirates
Deal found 4/9$1,201
This oojo deal was found by Cheapflights users on 4/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:15 pm
SEA
-
CMB
1 stop40h 25m
Emirates
Thu 5/1410:05 am
CMB
-
SEA
1 stop39h 50m
Emirates
Deal found 4/7$1,203

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 April 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,121
(oojo)

One-way from

$427
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$929
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
Highest demand for flights based on searches. 15% potential increase in price ($206 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 11, 2026.
Use the filters below to find and compare flights from Seattle to Colombo Bandaranaike Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Thu 9/10

4:25 pm-2:05 am

1 stop21h 10m

Colombo Bandaranaike Intl

Sun 9/13

3:35 am-12:25 pm

1 stop21h 20m

$1,200

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Wed 9/30

5:15 pm-8:30 am

1 stop26h 45m

Colombo Bandaranaike Intl

Sun 10/4

8:35 pm-1:25 pm

2 stops29h 20m

$1,254

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Fri 4/24

5:15 pm-4:50 pm

1 stop35h 05m

Colombo Bandaranaike Intl

Mon 4/27

2:05 am-1:25 pm

1 stop23h 50m

$1,391

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Tue 6/23

4:25 pm-3:05 am

1 stop22h 10m

Colombo Bandaranaike Intl

Fri 7/17

3:35 am-12:25 pm

1 stop21h 20m

$1,539

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Tue 6/23

4:25 pm-2:05 am

1 stop21h 10m

Colombo Bandaranaike Intl

Wed 7/15

3:35 am-12:25 pm

1 stop21h 20m

$1,542
Cheapest one-way

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Fri 4/24

11:33 pm-8:40 pm

2 stops32h 37m

$741

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Fri 4/24

7:10 pm-6:55 am

1 stop23h 15m

$760
Quickest one-way

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Wed 9/16

7:10 pm-5:20 am

1 stop21h 40m

$772

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sat 9/12

7:10 pm-5:20 am

1 stop21h 40m

$813

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Mon 4/20

4:25 pm-9:50 am

1 stop28h 55m

$2,635

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 14 resultsSorted by cheapest first
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 April.
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 April 10, 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 $1,155). 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.

How much does it cost to fly round-trip from Seattle to Colombo Bandaranaike Intl Airport?

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 April 11, 2026.
Read reviews from past customers who have flown Singapore Airlines,Emirates, andQatar 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
1,491 reviews

Food

7.8

Entertainment

8.0

Comfort

8.0

Crew

8.6

Overall

8.2

Boarding

8.3

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
1,491 reviews
Singapore Airlines
8.2
Very good
1,491 reviews

Food

7.8

Entertainment

8.0

Comfort

8.0

Crew

8.6

Overall

8.2

Boarding

8.3

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
3,557 reviews
Singapore Airlines
8.2
Very good
1,491 reviews

Food

7.8

Entertainment

8.0

Comfort

8.0

Crew

8.6

Overall

8.2

Boarding

8.3

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
3,727 reviews
Singapore Airlines
8.2
Very good
1,491 reviews

Food

7.8

Entertainment

8.0

Comfort

8.0

Crew

8.6

Overall

8.2

Boarding

8.3

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
4,306 reviews
Singapore Airlines
8.2
Very good
1,491 reviews

Food

7.8

Entertainment

8.0

Comfort

8.0

Crew

8.6

Overall

8.2

Boarding

8.3

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
200 reviews
Singapore Airlines
8.2
Very good
1,491 reviews

Food

7.8

Entertainment

8.0

Comfort

8.0

Crew

8.6

Overall

8.2

Boarding

8.3

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 6 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 21h 10m. The distance from Seattle to Colombo Bandaranaike Intl Airport is about 8420 mi.

  • 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 $645. 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 41% 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 $1,155). 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

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Alternative routes for Seattle to Colombo

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Portland to Colombo flights

Top 6 airlines flying from Seattle to Colombo

Discover the top 6 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 April 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$645Average$1,016FlexibilityNo cancel feeOn-time81%
China EasternCheapest$832Average$961FlexibilityNo cancel feeOn-time62%
Turkish AirlinesCheapest$938Average$1,108FlexibilityNo cancel feeOn-time77%
Cathay PacificCheapest$946Average$1,285FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$1,028Average$1,358FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,181Average$1,395FlexibilityNo cancel feeOn-time75%

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