Cheap Flights from Washington D.C. to Colombo from $434

Frequently Asked Questions

• What are the cheapest flights from Washington D.C. to Colombo (WAS-CMB)?

  Based on Trip.com data, Etihad Airways offers one-way fares as low as $434 on Cheapest nonstop routes (e.g. IAD to CMB on Mon, Sep 7), while Etihad Airways offers Cheapest nonstop round-trips from $921 departing on Tue, Sep 8 and returning on Tue, Sep 15.

• Which airlines offer flights from Washington D.C. to Colombo?

  At the moment, several airlines serve connecting flights from Washington D.C. to Colombo, including: Qatar Airways Etihad Airways Turkish Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• When is the best time to book flights from Washington D.C. to Colombo?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Washington D.C. to Colombo is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Washington D.C. to Colombo?

  To find best deals on flights from Washington D.C. to Colombo, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, Sep 7, with one-way flights priced at just $434.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Etihad Airways.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Colombo travel is around December.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Washington D.C. (WAS) to Colombo (CMB) the cheapest?

  The cheapest months to fly from Washington D.C. to Colombo is November, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Washington D.C. to Colombo on?

  After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Washington D.C. to Colombo on August 19, 2026 with Etihad Airways, with prices starting at $1,048.

• Which airports can I fly to for Colombo from Washington D.C.?

  You can land at any one of the following hubs in Colombo, with Dulles International Airport to Bandaranaike International Airport (IAD-CMB) is by far the most common option on this route: Bandaranaike International Airport (CMB).

• Is there any time difference between Washington D.C. and Colombo?

  The time difference between Colombo and Washington D.C. is 10h.

• How do I change or cancel my ticket from Washington D.C. to Colombo?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average cost of a one-way flight from Washington D.C. to Colombo?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Washington D.C. to Colombo is $769. Fares vary by travel date, airline and availability.

• How do I book flights from Washington D.C. to Colombo on Trip.com?

  Enter Washington D.C. and Colombo, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.