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$506+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CMB
Dec 29 — Jan 51
Mon 12/29
Mon 1/5
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 October, booked 77 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 November 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$801
(FlightHub)

One-way from

$539
(Cathay Pacific)

Popular in

June

Cheapest in

September

Average price

$1,014
Provider with most accurate pricing for Seattle/Tacoma Intl-Colombo Bandaranaike Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Colombo Bandaranaike Intl flights.
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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. 11% potential increase in price ($161 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
Search Deals

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 November 29, 2025.

This Gurufare deal was found by Cheapflights users on 11/28. 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.
Sat 11/297:10 amSEA - CMB
2 stops46h 20mChina Eastern
Sun 12/78:20 pmCMB - SEA
2 stops33h 31mChina Eastern
Deal found 11/28$940
This Gurufare deal was found by Cheapflights users on 11/28. 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 12/307:55 pmSEA - CMB
2 stops38h 05mCathay Pacific
Tue 1/2712:45 amCMB - SEA
2 stops27h 04mCathay Pacific
Deal found 11/28$1,055
This Cathay Pacific deal was found by Cheapflights users on 11/28. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:55 pmSEA - CMB
2 stops38h 05mCathay Pacific
Mon 1/2612:45 amCMB - SEA
2 stops33h 19mCathay Pacific
Deal found 11/28$1,060
This Cathay Pacific deal was found by Cheapflights users on 11/28. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:09 amSEA - CMB
2 stops26h 51mCathay Pacific
Mon 1/2612:45 amCMB - SEA
2 stops33h 19mCathay Pacific
Deal found 11/28$1,065
This FlightHub deal was found by Cheapflights users on 11/28. 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 11/292:35 pmSEA - CMB
2 stops43h 25mCathay Pacific
Sat 12/612:45 amCMB - SEA
2 stops55h 33mCathay Pacific
Deal found 11/28$1,081
This Cathay Pacific deal was found by Cheapflights users on 11/29. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/296:41 pmSEA - CMB
2 stops39h 19mMultiple Airlines
Sat 12/612:45 amCMB - SEA
2 stops46h 46mMultiple Airlines
Deal found 11/29$1,104
This Gurufare deal was found by Cheapflights users on 11/28. 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 12/307:55 pmSEA - CMB
2 stops38h 05mCathay Pacific
Thu 1/2912:45 amCMB - SEA
2 stops27h 04mCathay Pacific
Deal found 11/28$1,105
This Cathay Pacific deal was found by Cheapflights users on 11/28. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:55 pmSEA - CMB
2 stops38h 05mCathay Pacific
Wed 1/2812:45 amCMB - SEA
2 stops46h 46mCathay Pacific
Deal found 11/28$1,110
This Cathay Pacific deal was found by Cheapflights users on 11/28. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:49 pmSEA - CMB
2 stops42h 11mCathay Pacific
Fri 1/3012:45 amCMB - SEA
2 stops33h 19mCathay Pacific
Deal found 11/28$1,115
This Cathay Pacific deal was found by Cheapflights users on 11/28. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:55 pmSEA - CMB
2 stops38h 05mCathay Pacific
Sat 1/3112:45 amCMB - SEA
2 stops58h 43mCathay Pacific
Deal found 11/28$1,142
This FlightHub deal was found by Cheapflights users on 11/28. 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 12/294:05 pmSEA - CMB
1 stop21h 10mQatar Airways
Thu 1/297:30 pmCMB - SEA
1 stop29h 40mQatar Airways
Deal found 11/28$1,147
This Cathay Pacific deal was found by Cheapflights users on 11/28. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:09 amSEA - CMB
2 stops50h 51mCathay Pacific
Sun 2/112:45 amCMB - SEA
2 stops46h 46mCathay Pacific
Deal found 11/28$1,148

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 November 29, 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

Sat 3/21

7:20 am-7:00 pm

2 stops47h 10m

Colombo Bandaranaike Intl

Sun 3/29

8:30 pm-5:09 pm

2 stops33h 09m

$983

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Thu 3/5

3:52 pm-11:30 pm

2 stops42h 08m

Colombo Bandaranaike Intl

Sun 3/8

12:45 am-9:48 pm

2 stops33h 33m

$1,065

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sat 3/21

7:55 pm-11:30 pm

2 stops39h 05m

Colombo Bandaranaike Intl

Sat 3/28

12:45 am-9:57 am

2 stops45h 42m

$1,087

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sat 1/31

11:43 am-11:30 pm

2 stops46h 17m

Colombo Bandaranaike Intl

Fri 2/13

12:45 am-5:00 pm

2 stops29h 45m

$1,127

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sat 3/21

8:00 pm-11:30 pm

2 stops39h 00m

Colombo Bandaranaike Intl

Sun 3/29

11:45 am-8:45 am

1 stop57h 30m

$1,148

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sat 12/27

4:05 pm-2:45 am

1 stop21h 10m

Colombo Bandaranaike Intl

Tue 1/13

10:15 am-11:40 am

1 stop38h 55m

$1,505

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Wed 1/28

5:40 pm-11:30 pm

2 stops40h 20m

Colombo Bandaranaike Intl

Sun 2/8

12:15 pm-8:00 pm

3 stops45h 15m

$1,629

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Mon 2/2

9:55 pm-10:45 am

3 stops47h 20m

Colombo Bandaranaike Intl

Fri 2/6

12:45 am-6:53 pm

3 stops31h 38m

$1,675

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sun 12/14

4:05 pm-2:45 am

1 stop21h 10m

Colombo Bandaranaike Intl

Thu 12/25

4:15 am-11:59 pm

2 stops33h 14m

$1,840

SeattleColombo

SEA - CMB

SEACMB

Seattle/Tacoma Intl

Sat 12/13

12:10 am-9:50 pm

3 stops32h 10m

Colombo Bandaranaike Intl

Thu 12/25

12:35 am-7:16 pm

3 stops32h 11m

$2,045

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/29

Showing 1-10 of 18 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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Colombo Bandaranaike Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 November 21, 2025.

The best time to book flights from Seattle to Colombo Bandaranaike Intl Airport is 77 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, January is the cheapest month in which you can book a flight from Seattle to Colombo Bandaranaike Intl Airport (average of $678). Flying from Seattle to Colombo Bandaranaike Intl Airport in June is currently the most expensive (average of $1,173). 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 November 29, 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 26% 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 November 29, 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
3,428 reviews

Comfort

8.0

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

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
3,428 reviews
Emirates
8.1
Very good
3,428 reviews

Comfort

8.0

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

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
1,411 reviews
Emirates
8.1
Very good
3,428 reviews

Comfort

8.0

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

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
3,677 reviews
Emirates
8.1
Very good
3,428 reviews

Comfort

8.0

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

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
4,069 reviews
Emirates
8.1
Very good
3,428 reviews

Comfort

8.0

Food

7.9

Crew

8.3

Overall

8.1

Entertainment

8.2

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 36h 30m. 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 $699. Additional round-trip tickets that might be worth considering are offered by Turkish Airlines and Qatar Airways, with the lowest prices starting at $945 and $1,110, respectively. Users have found that Singapore Airlines is 42% 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, January is the cheapest month in which you can book a flight from Seattle to Colombo Bandaranaike Intl Airport (average of $678). Flying from Seattle to Colombo Bandaranaike Intl Airport in June is currently the most expensive (average of $1,173). 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 November 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$699Average$1,035FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$945Average$1,241FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,110Average$1,490FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,178Average$1,352FlexibilityNo cancel feeOn-time75%

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