SEA - CMB

$509 Find Cheap Flights from Seattle to Colombo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Colombo departing on 9/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Colombo.
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Everything you should know

Cheapest round-trip
$829
Typical prices: $1,123-$871
Singapore Airlines
Thu 10/22Fri 11/13
SEA - CMB • 1 stop
Cheapest one-way
$509
Singapore Airlines
Sun 9/13
SEA - CMB • 1 stop
Top airlines
Cheapest • from $829 (round-trip)
Best reviews • 8.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Colombo. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $1,711 (round-trip)
Shortest trip • 21h 34m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 32% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Colombo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Colombo (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 Colombo 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 Colombo

Thu, Oct 22 - Fri, Nov 13
Singapore Airlines Logo
10:15 am - 11:35 pm
SEA
-
CMB
24h 50m
1 stop
Singapore Airlines Logo
12:45 am - 7:10 am
CMB
-
SEA
19h 55m
1 stop
$829Singapore Airlines
Thu, Oct 22 - Fri, Nov 13
Singapore Airlines Logo
10:15 am - 10:45 am
SEA
-
CMB
36h 00m
1 stop
Singapore Airlines Logo
12:45 am - 7:10 am
CMB
-
SEA
19h 55m
1 stop
$831Singapore Airlines
Tue, Oct 13 - Mon, Oct 19
Singapore Airlines Logo
10:15 am - 11:35 pm
SEA
-
CMB
24h 50m
1 stop
Singapore Airlines Logo
12:50 am - 8:45 am
CMB
-
SEA
20h 25m
1 stop
$832Singapore Airlines
Wed, Oct 21 - Fri, Nov 13
Multiple Airlines Logo
2:05 pm - 10:45 am
SEA
-
CMB
32h 10m
2 stops
Multiple Airlines Logo
12:45 am - 7:10 am
CMB
-
SEA
19h 55m
1 stop
$937Multiple Airlines
Tue, Oct 13 - Mon, Oct 19
Multiple Airlines Logo
5:01 pm - 10:45 am
SEA
-
CMB
29h 14m
2 stops
Multiple Airlines Logo
12:50 am - 8:45 am
CMB
-
SEA
20h 25m
1 stop
$939Multiple Airlines
Thu, Oct 22 - Fri, Nov 13
Multiple Airlines Logo
7:05 pm - 10:45 am
SEA
-
CMB
27h 10m
2 stops
Multiple Airlines Logo
12:45 am - 7:10 am
CMB
-
SEA
19h 55m
1 stop
$967Multiple Airlines
Wed, Nov 25 - Sun, Nov 29
Singapore Airlines Logo
8:45 am - 11:30 pm
SEA
-
CMB
25h 15m
1 stop
Singapore Airlines Logo
12:45 am - 7:10 am
CMB
-
SEA
43h 55m
1 stop
$1,044Singapore Airlines
Fri, Nov 20 - Fri, Nov 27
Singapore Airlines Logo
8:45 am - 11:30 pm
SEA
-
CMB
25h 15m
1 stop
Singapore Airlines Logo
12:45 am - 7:10 am
CMB
-
SEA
19h 55m
1 stop
$1,050Singapore Airlines
Sun, Sep 13 - Fri, Sep 18
Multiple Airlines Logo
7:10 pm - 10:45 am
SEA
-
CMB
27h 05m
2 stops
Multiple Airlines Logo
12:50 am - 8:45 am
CMB
-
SEA
20h 25m
1 stop
$1,144Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Qatar Airways Logo
4:25 pm - 3:05 am
SEA
-
CMB
22h 10m
1 stop
Qatar Airways Logo
4:35 am - 12:25 pm
CMB
-
SEA
20h 20m
1 stop
$1,172Qatar Airways
Booking Insights

KAYAK's insights & trends for Seattle to Colombo flights

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

How much is a round-trip flight from Seattle to Colombo Bandaranaike Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Colombo Bandaranaike Intl Airport departing in October.

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 January, where tickets cost $744 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,470 and $1,470 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$509
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 33% increase in price.
Flight from Seattle to Colombo

When to book flights from Seattle to Colombo

Are your dates flexible? Find out the best times to travel from Seattle to Colombo 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 flights

  • What is the cheapest flight from Seattle to Colombo Bandaranaike Intl Airport?

    In the last 5 days, the lowest price for a flight from Seattle to Colombo Bandaranaike Intl Airport was $509 for a one-way ticket and $829 for a round-trip.

  • Do I need a passport to fly between Seattle and Colombo?

    A passport is required to fly from Seattle to Colombo.

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

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

  • Which airline alliances offer flights from Seattle to Colombo?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Seattle and Colombo, with SkyTeam being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Seattle to Colombo are Singapore Airlines and Emirates. With an average price for the route of $969 and an overall rating of 8.2, Singapore Airlines is the most popular choice. Emirates is also a great choice for the route, with an average price of $1,395 and an overall rating of 8.1.

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

    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.

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

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

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

    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 with an airline and back to Seattle with another airline. Booking your flights between Seattle and CMB can sometimes prove cheaper using this method.

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

    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 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 5 airlines serving from Seattle to Colombo

 
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 Colombo? 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.
8.2
Singapore AirlinesOverall score based on 1532 reviews
7.8Food
8.0Comfort
8.3Boarding
8.6Crew
8.1Entertainment
Airline reviews

Very concerned with guest comforts going out of their way to accommodate special dietary needs when the guests hadn’t pre-ordered.

10.0 ExcellentVerak, May 2026
SFO - SIN
Read more Singapore Airlines reviews

Very concerned with guest comforts going out of their way to accommodate special dietary needs when the guests hadn’t pre-ordered.

Clean modern comfortable. Food could have been better, I only ate breakfast I wish they wouldn’t wake sleeping passengers who would rather sleep through dinner. No tea or coffee for breakfast

Food was terrible , uncomfortable seats, WiFi did not work, will never fly Singapore again.

Fast and efficient flight. Wifi worked well. Food selection could have been better

I had ordered vegetarian food. What I was presented was extremely dissatisfying and not up to the mark. I pretty much did not eat entire 19 hours. For.an airline voted as best in business, it was extremely disappointing. Seats were not comfortable to sleep. Entertainment system didn’t have much choice. WiFi didn’t work for more than half the time. Cabin crew were also difficult to understand. A bit of diversity like Emirates crew would go a long way.

A little more room from the reclining seat in the front of me.

They ran out of the second choice of food was stuck with fish

I find it was a bit hot before take off. If there is a way to improve the airflow it would be great

I wish there was a little more leg room between the seats. The recline was good and seats overall were comfortable. I also didn’t like the 2-4-2 configuration.

toilets could be cleaned more frequently, everything else was pretty good.

What a great trip . From check in to the upgrade we received a big shout out to Cleverson who was able to help us navigate the whole process super patient and was just one of the best customer service experiences we received in a very long time . The amazing staff on the flight who went above and beyond to make sure we were comfortable amazing food and service if you have te opportunity to upgrade it's a must and well worth it.

I love to travel again and again in Emirates. Keep up the good work.

Very good from the beginning to the end. Amazing experience

I liked the newer aircraft CRJ-550 since it had WIFI and the seats are more spacious.

Fly Dubai takes low cost and thrift to new depths in terms of service levels, terminal 2 is grossly inadequate for capacity and resembles a crowded buss or railway station,, the fly dubai( Emirates) flight is never on time(was 2.5 hrs delayed), and this is not an isolated experience, the flght air conditioning was turned low while we waited on the tarmac for take clearance to save fuel, should say more!!!! The depths! I only fly this airline from a compulsion, emirates code shares for connections to Muscat

They changed the flight time without telling us and were unwilling to help with rebooking because we booked through orbits/kayak

Emirates did great! I liked the service, the food, cleanness, and the flight was on time. Much better airline than Qatar Airways I flew with last year.

I lost my lock from my luggage, I don’t know someone took something from my bag.

Except for the uncleaned tray, and the delay in serving food for our section (which may have been due to the location of our row) everything else was good. The crew were very professional and responded to our requests promptly throughout the flight. We as a family were not disappointed by Emirates.

It was great, a little more leg room would have been better particularly since we were in premium economy

Despite the crew's rough day, they were all very focused and friendly. The flight was too short for a meal, so no rating on that. Re. the AA app. It still isn't ready for prime time. AA works with Cathy Pacific for international flights to LA and the Aa jump to PHX. But the AA app can't find my trip and this can be problematic with flight delays and regatings at LAX.

Was not able to board flight because boarding pass name did not match passport name and no one caught it.

Had a bad experience with crew member coming back Hong Kong to la the person next to me one of the passenger have taken video and picture of crew member the person that served meal young kid late 20' s 6 5'10 had attitude at his peak anything I asked for I don't know if it was bad day or racial I felt humiliated as people could see difference towards me I no problem with Cathy and my whole family never had one was very disappointed

Frequently flyer number should and could have been put on at the time of booking as I gave the number when booking.

Very attentive crews Flight was very smooth and safe Only little disappointment was the slight delay of departure (~30 minutes ) which rarely happen with CX flights

Not at all satisfactory. I had stomach upsets after taking food. Quality of Asian vegetarian meal was awful. Further there was no snacks/ fruits/ biscuits available as in between snacks.. only peanuts and pitzels.. except courteous staff rest of my experience was far from satisfactory

Staff was very courteous. Plane was clean and quite spacious even in the last rows. Veg food could have been better.

Later on, when there was no more bottled water, the water we received had a strong chlorine/disinfectant odor. On my flight from Hong Kong to Los Angeles, there was a male flight attendant who had a mean attitude throughout the whole trip, and he was very impatient during meal service “Furthermore, we purchased a Hong Kong SIM card as part of our flight package, but we received no instructions—neither by email nor SMS—on how to activate or use it. Consequently, we were unable to use the service at all. We request a full refund, as this appears to be a deceptive charge

Everything and everyone were excellent except for the charge for using WiFi; there was no escape from this fee except to not use it.

The crew and the food were excellent. The plane was kept quite clean.

Really good food and service. Qatar Airways is again and again provided an exceptional experience.

Extremely uncomfortable seats with very little cushioning, unable to recline enough to sleep comfortably on this 13 hour overnight flight. My body was in pain by the end.

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

Our experience on the Doha to Hyderabad segment was extremely stressful due to prolonged delays and a lack of clear communication from the airline. We were traveling as a family, including children, and the uncertainty around timing and next steps caused significant distress. There was very little proactive information provided during the delay, and we were not given clear written explanations about what was happening or how long it might take. This made it difficult to manage the situation, especially while caring for children in a transit environment. In addition, one member of our party was ultimately unable to continue travel, which added to the emotional strain and disruption of the trip. Overall, the experience highlighted gaps in communication, customer care, and handling of unexpected situations. We are sharing this feedback so that future passengers, especially families, are supported with clearer communication and better assistance during irregular operations.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

It would help id flight crew were not rude and showed some courtesy. They were shouting at passengers and yelling instructions as if we were school children at lunch cafeteria!!

All good. Over four hours flight if provided snacks like Qatar Airways would be better

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

It was just fine. The sirlines did live up fully to my expectation.

The flight was delayed. The staff made us wait in the room that is too small and it was crowded and with no seats available for waiting. They did not tell us why the delay occurred.

While boarding at PVG, there was a ticket checking at the gate, then there was another ticket checking at the bottom of the escalator, which created quite a dangerous congestion. Not sure which idiot made this absolutely unnecessary arrangement.

While boarding at PVG, there was a ticket checking by the gate, then there was another ticket checking right at the bottom of the escalator, which created quite a dangerous congestion. Don't understand why the duplication?

I was traveling alone with an infant, so the crew was incredibly helpful. Both the international and subsequent domestic flights were impeccable.

Plane was good. But food was bad and air host was so rude. I will never fly with China Eastern again

The flight was delayed by 2 hours, although to their credit they delayed my connecting flight so people could reach it. Also their site is a nightmare to navigate on a phone. Everything else was good.

The ticket was last minute buy so no concerns about the pricing this time, but the crew in general could have been more accommodating, helpful.

CTU-KMG-CNX with 1.5 hr connection at KMG. Doable but just barely bc immigration exit from China is at the last flight leg, here: KMG to CNX. We hauled out of the domestic terminal to reenter at the international departures (luggage checked thru to CNX thankfully). Immigration had only two agents, even though KMG gets a HUGE number of foreigners. It took forever for such a shot line. Then security also took a while, so I just just made the connection. Recommend if you exit China with domestic international transfer, plan for 2+ hrs to avoid a heart attack. Airline personnel don’t suffer if you miss the flight, you do. Plan accordingly.

China Eastern as a member of Sky Alliance airlines should have the same standards overall of their partners, Besides the seats comforts everything else is bellow the standard for a business class travelers. A BIG ISSUE FOR NON-CHINESE PASSENGERS IS THE ABILITY TO CHECK IN ONLINE, by making so difficult or almost impossible there is no chance to get a seat assignment ahead of time then go to the airport and get what is left. THIS IS NOT a SKY TEAM modality.

Everything you need to know for your flight from Seattle to Colombo

Information on your arrival and departure airports