SEA - CMB

Find cheap flights from Seattle to Colombo Bandaranaike Intl

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Colombo Bandaranaike Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Colombo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Colombo, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seattle to Bandaranaike Intl (SEA-CMB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Bandaranaike Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Bandaranaike Intl

Multiple Airlines Logo
SEA-CMB
21807 kmmulti-stop
Multiple Airlines Logo
CMB-SEA
21807 kmmulti-stop
Multiple Airlines
Find Deal

Everything you should know

When to book
6 weeks
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 30% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 22% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
Multiple Airlines
Wed 29/10
SEA - CMB • multi-stop
Cheapest one-way flights
Multiple Airlines
Wed 29/10
SEA - CMB • multi-stop
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Bandaranaike Intl!
Booking Insights

KAYAK's insights & trends for Seattle to Bandaranaike Intl flights

Get data-powered insights and trends into flights from Seattle to Bandaranaike Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to Colombo Bandaranaike Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Colombo Bandaranaike Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Colombo Bandaranaike Intl Airport is September, where tickets cost C$ 1,319 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is C$ 2,224 and C$ 2,037 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Colombo Bandaranaike Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Colombo Bandaranaike Intl Airport, you should book around 6 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonMay
Best time to beat the crowds (0% less expensive on average)
Most popular time to fly (7% more expensive on average)

When to book flights from Seattle to Bandaranaike Intl

Are your dates flexible? Find out the best times to travel from Seattle to Bandaranaike Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Seattle to Colombo Bandaranaike Intl flights

  • Which aircraft models fly most regularly from Seattle to Colombo Bandaranaike Intl?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Colombo Bandaranaike Intl?

    Star Alliance is the only airline alliance operating flights between Seattle and Colombo Bandaranaike Intl.

  • Which is the best airline for flights from Seattle to Colombo, Singapore Airlines or Turkish Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Colombo are Singapore Airlines and Turkish Airlines. With an average price for the route of C$ 1,499 and an overall rating of 8.1, Singapore Airlines is the most popular choice. Turkish Airlines is also a great choice for the route, with an average price of C$ 1,448 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Seattle to Colombo Bandaranaike Intl?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Colombo Bandaranaike Intl.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Colombo Bandaranaike Intl?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Colombo Bandaranaike Intl from Seattle is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Colombo Bandaranaike Intl?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Colombo Bandaranaike Intl with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Colombo Bandaranaike Intl?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Colombo Bandaranaike Intl from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Seattle to Bandaranaike Intl

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Colombo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Bandaranaike Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Singapore AirlinesOverall score based on 1388 reviews
8.0Entertainment
8.3Boarding
7.7Food
8.0Comfort
8.6Crew
Airline reviews

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

10.0 ExcellentAnonymous, Jul 2025SFO - SIN
Read more Singapore Airlines reviews

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

Food from Surabaya was below average but from Singapore is much better

Very good flight from Boarding to landing -efficient and comfortable with decent entertainment options

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

Food could have been better. Too many passengers getting up and down all the time.

Everything was great keep up the good work 😁, can't ask for more.

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

The food options and quality could use some more excitement and variety.

I very much liked and appreciated the service on board. The seating arrangement in Business feels uncomfortable. It's not made for tall people, in any case.

My flight was canceled 1 minute before boarding. The customer service was owful, no one could tell us what was going happened. I spent 30hrs instead of 15 from Washington DC to Brussels. No apologie or help

Boeing 777 is a bad choice for a such a long flight.

The staff at IST airport could have been more helpful. Too much wasted time and the plane from IST to KHI was just horrible. The plane was not clean and smelled bad!

This is my 2nd time with the Turkish airline. Would definitely recommend. In stability we connected to Indiago would not recommend, very cramped seating. No inflight entertainment..service was inferior.

I wouldn't know what the flight was like. AI canceled my flight reservation!! There's no way to speak to an actual human to fix the issue! NEVER AGAIN! ALWAYS BOOK YOUR FLIGHT DIRECTLY WITH THE AIRLINE NEVER GO THROUGH KAYAK OR JUSTFLY.COM!!

Paying extra for premium seats was wasted. Turkish Airlines takes 2 seats for bassinet. The lady next to me had a baby with bassinet Bassinet was in front of my seat

Rude staff. I would avoid using the word racist but definitely partially or discriminatory. My 72 yrs old mother who is also disabled was traveling on this flight. She was the second passenger boarded to the plane. The First elderly couple ahead of my mother were allowed to use the airplane bathroom but my mother was denied entry stating it was for safety reasons. My mother objected the the couple in front of her were allowed but hostess still stated that due to the flight safety reasons she can’t use it. Even my mother explained that he is using blood pressure medication that’s why she have to use the restroom frequently but the crew continued arguing her. At one point the Mae attendent even suggested that if that’s the case my mother can urinate in her seat. The level of disrespect against an elderly lady is beyond my comprehension. This matter will be taken to the social media to shame the employees involved.

my experience was great with Turkish airlines . the problem i encountered was with kayak booking. When I booked . it showed that im allowed a bag . and when I got to the airport, i had to pay $165 for one bag.

Not up to Business Class standards. Two of the three toilets were out of order. The hostesses were aware and didn’t show any responsible act to do something. Food quality was not what we expect from Turkish hospitality. Overall we were not impressed and disappointed.

During mid flight, try to get a flight attendant to help I couldn’t find one Otherwise, everything was perfect

Everything you need to know for your flight from Seattle to Bandaranaike Intl

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