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Cheap flights from Seattle to Colombo Bandaranaike Intl Airport

SEA — CMB
19 Aug — 26 Aug1
1 adult

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 14 August 2025.

Popular in

June

Cheapest in

September

Average price

C$ 1,846
Highest demand for flights based on searches. 12% potential increase in price (C$ 311 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 70 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 8 August 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Colombo Bandaranaike Intl Airport, you should look to book at least 40 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 C$ 1,322). Flying from Seattle to Colombo Bandaranaike Intl Airport in December is currently the most expensive (average of C$ 1,808). 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’s the top layover airport for flights from Seattle to Colombo Bandaranaike Intl Airport?

Share of one-stop round-trip flights from Seattle to Colombo Bandaranaike Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Singapore (SIN) – chosen by Cheapflights users on 54% of one-stop itineraries from Seattle to Colombo Bandaranaike Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Seattle to Colombo Bandaranaike Intl Airport?

Average round-trip fare for 1-stop flights from Seattle to Colombo Bandaranaike Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Singapore (SIN) is the most affordable 1-stop option, with an average round-trip price of C$ 1,340.

What’s the fastest layover option from Seattle to Colombo Bandaranaike Intl Airport?

Shortest average travel time for 1-stop one-way flights from Seattle to Colombo Bandaranaike Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Doha (DOH) have the shortest average one-way travel time for 1-stop routes: 21h 20m.

Which airport typically offers the quickest layover for flights from Seattle to Colombo Bandaranaike Intl Airport?

Average layover duration for 1-stop one-way flights from Seattle to Colombo Bandaranaike Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Doha (DOH) offer the fastest connection on this route, with an average layover time of 1h 48m.

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 14 August 2025.
Read through reviews of airlines operating flights from Seattle to Colombo Bandaranaike Intl Airport, such as Emirates,Singapore Airlines, andQatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,315 reviews
Check prices

Overall

8.1

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

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
3,315 reviews
Emirates
8.1
Very good
3,315 reviews
Check prices

Overall

8.1

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

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
1,346 reviews
Emirates
8.1
Very good
3,315 reviews
Check prices

Overall

8.1

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

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
3,608 reviews
Emirates
8.1
Very good
3,315 reviews
Check prices

Overall

8.1

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

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
3,940 reviews
Emirates
8.1
Very good
3,315 reviews
Check prices

Overall

8.1

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

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?

    Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly out of when you book flights from Seattle to Colombo Bandaranaike Intl. 4 airlines have flights from Seattle/Tacoma Intl to Colombo Bandaranaike Intl on a regular basis. Booking flights from Seattle/Tacoma Intl to Colombo Bandaranaike Intl should not be difficult; the airport handles an average of 0 outbound flights to Colombo Bandaranaike Intl per day.

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

    Our cheapest airline available from Seattle to Colombo Bandaranaike Intl Airport is Singapore Airlines. Our recent data shows that you can find tickets from as low as C$ 1,063 on this airline. Additional options worth looking into are Turkish Airlines and Emirates, starting at C$ 1,374 and C$ 1,496 round-trip. Singapore Airlines is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • 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 C$ 1,322). Flying from Seattle to Colombo Bandaranaike Intl Airport in December is currently the most expensive (average of C$ 1,808). 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

Travelling 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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Other flights to Colombo

Explore flights to Colombo departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 14 August 2025.
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Colombo Bandaranaike Intl Airport to London Heathrow Airport 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 629,999 searches. Data last updated 14 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapestC$ 1,063AverageC$ 1,418FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Turkish AirlinesCheapestC$ 1,374AverageC$ 1,428FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
EmiratesCheapestC$ 1,496AverageC$ 1,555FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Qatar AirwaysCheapestC$ 1,522AverageC$ 1,823FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Colombo?

Cheapflights helps you search for flights from Seattle to Colombo via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Colombo?

Cheapflights simply makes it quick and affordable to book flights from Seattle to Colombo by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Seattle to Colombo with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Colombo flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Seattle to Colombo become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Colombo from Seattle today and book when prices fit your budget.

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