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$483+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CMB
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Colombo Bandaranaike Intl are usually found in September or February, booked 40 days in advance, depart on a Sunday or Wednesday and return on a Wednesday

Cheap 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 September 11, 2025.

Round-trip from

$953
(FlightHub)

One-way from

$483
(Gurufare)

Popular in

June

Cheapest in

September

Average price

$953
From Seattle/Tacoma Intl to Colombo Bandaranaike Intl
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One-way flight from Seattle/Tacoma Intl to Colombo Bandaranaike Intl
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Highest demand for flights based on searches. 12% potential increase in price ($168 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This FlightHub deal was found by Cheapflights users on 9/9. 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.
Wed 10/87:10 pmSEA - CMB
1 stop29h 05mTurkish Airlines
Wed 10/156:45 amCMB - SEA
1 stop23h 00mTurkish Airlines
Deal found 9/9$953
This FlightHub deal was found by Cheapflights users on 9/10. 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.
Fri 9/197:10 pmSEA - CMB
1 stop29h 05mTurkish Airlines
Fri 10/1010:15 pmCMB - SEA
1 stop31h 30mTurkish Airlines
Deal found 9/10$978
This CrystalTravel deal was found by Cheapflights users on 9/10. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:00 pmSEA - CMB
1 stop21h 40mTurkish Airlines
Mon 12/17:40 amCMB - SEA
1 stop22h 55mTurkish Airlines
Deal found 9/10$979
This Justfly.com deal was found by Cheapflights users on 9/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:15 amSEA - CMB
1 stop24h 50mSingapore Airlines
Mon 10/2012:50 amCMB - SEA
1 stop20h 25mSingapore Airlines
Deal found 9/9$984
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Sat 9/2012:30 pmSEA - CMB
1 stop28h 15mTurkish Airlines
Fri 10/106:45 amCMB - SEA
1 stop40h 20mTurkish Airlines
Deal found 9/11$990
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Wed 10/157:10 pmSEA - CMB
1 stop29h 05mTurkish Airlines
Sun 11/3010:00 pmCMB - SEA
1 stop32h 35mTurkish Airlines
Deal found 9/11$996
This FlightHub deal was found by Cheapflights users on 9/9. 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.
Sun 9/217:10 pmSEA - CMB
1 stop21h 35mTurkish Airlines
Sat 10/46:45 amCMB - SEA
1 stop23h 00mTurkish Airlines
Deal found 9/9$1,029
This Ovago deal was found by Cheapflights users on 9/10. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:10 amSEA - CMB
2 stops47h 20mChina Eastern
Mon 12/18:20 pmCMB - SEA
2 stops31h 54mChina Eastern
Deal found 9/10$1,046
This oojo deal was found by Cheapflights users on 9/9. 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 10/148:15 pmSEA - CMB
2 stops38h 50mMultiple Airlines
Mon 10/2012:50 amCMB - SEA
1 stop20h 25mMultiple Airlines
Deal found 9/9$1,073
This FlightHub deal was found by Cheapflights users on 9/9. 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 9/91:30 amSEA - CMB
2 stops25h 45mMultiple Airlines
Thu 9/257:50 amCMB - SEA
2 stops23h 30mMultiple Airlines
Deal found 9/9$1,079

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 September 11, 2025.
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

Tue 10/14

10:15 am-11:35 pm

1 stop24h 50m

Colombo Bandaranaike Intl

Mon 10/20

12:50 am-8:45 am

1 stop20h 25m

$984

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Thu 1/8

8:45 am-11:30 pm

1 stop25h 15m

Colombo Bandaranaike Intl

Wed 1/14

12:45 am-7:10 am

1 stop19h 55m

$1,011

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Wed 10/8

10:00 am-5:25 am

3 stops30h 55m

Colombo Bandaranaike Intl

Wed 10/15

6:55 pm-11:55 am

2 stops29h 30m

$1,133

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sun 9/21

4:30 pm-3:05 am

1 stop22h 05m

Colombo Bandaranaike Intl

Fri 10/3

3:35 am-12:45 pm

1 stop21h 40m

$1,149

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Tue 10/14

11:24 am-2:05 am

2 stops26h 11m

Colombo Bandaranaike Intl

Tue 10/21

4:35 am-8:35 pm

2 stops28h 30m

$1,155

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sun 10/26

5:05 pm-1:55 am

1 stop20h 20m

Colombo Bandaranaike Intl

Wed 10/29

3:25 am-12:40 pm

1 stop21h 45m

$1,190

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sun 10/26

5:05 pm-8:15 am

1 stop26h 40m

Colombo Bandaranaike Intl

Thu 10/30

8:15 pm-1:35 pm

2 stops29h 50m

$1,200

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Thu 10/30

7:10 am-7:00 pm

2 stops47h 20m

$483

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Thu 10/30

9:45 am-11:30 pm

1 stop25h 15m

$530

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Thu 10/30

10:08 am-9:10 pm

3 stops46h 32m

$553

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 13 results
1
2

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 August 29, 2025.

The best time to book flights from Seattle to Colombo Bandaranaike Intl Airport is 40 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, September is the cheapest month in which you can book a flight from Seattle to Colombo Bandaranaike Intl Airport (average of $1,028). Flying from Seattle to Colombo Bandaranaike Intl Airport in December is currently the most expensive (average of $1,732). 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.

What is the cheapest time of day to fly from SEA to CMB?

Find hourly flight availability from Seattle to Colombo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Colombo Bandaranaike Intl Airport at noon. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight in the afternoon.

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 September 11, 2025.
Read reviews from past customers who have flown Emirates, Singapore Airlines, 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.
Emirates
8.1
Very good
3,334 reviews

Entertainment

8.2

Overall

8.1

Comfort

8.0

Crew

8.3

Food

7.9

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,334 reviews
Emirates
8.1
Very good
3,334 reviews

Entertainment

8.2

Overall

8.1

Comfort

8.0

Crew

8.3

Food

7.9

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Singapore Airlines
8.1
Very good
1,365 reviews
Emirates
8.1
Very good
3,334 reviews

Entertainment

8.2

Overall

8.1

Comfort

8.0

Crew

8.3

Food

7.9

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,624 reviews
Emirates
8.1
Very good
3,334 reviews

Entertainment

8.2

Overall

8.1

Comfort

8.0

Crew

8.3

Food

7.9

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Turkish Airlines
7.3
Good
3,968 reviews
Emirates
8.1
Very good
3,334 reviews

Entertainment

8.2

Overall

8.1

Comfort

8.0

Crew

8.3

Food

7.9

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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 4 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 22h 05m. 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 $757. Additional round-trip tickets that might be worth considering are offered by Turkish Airlines and Qatar Airways, with the lowest prices starting at $938 and $1,105, respectively. Users have found that Singapore Airlines is 36% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Seattle to Colombo Bandaranaike Intl Airport one-way?

    The cheapest airline one-way is China Eastern, with whom users have recently found tickets for as low as $483. However, be on the lookout for offers from Singapore Airlines and Turkish Airlines, as they are both options that can get you from Seattle to Colombo Bandaranaike Intl Airport for a low price.

  • 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, September is the cheapest month in which you can book a flight from Seattle to Colombo Bandaranaike Intl Airport (average of $1,028). Flying from Seattle to Colombo Bandaranaike Intl Airport in December is currently the most expensive (average of $1,732). 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 4 airlines flying from Seattle to Colombo

Discover the top 4 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$757Average$1,035FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$938Average$1,096FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,105Average$1,394FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,166Average$1,350FlexibilityNo cancel feeOn-time75%

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