Cheap Flights from Chattanooga to Washington Dulles

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Find the cheapest month or even day of the year to fly to Washington Dulles

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Find the cheapest month to fly from Chattanooga to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chattanooga to Washington Dulles flights are currently cheapest in March.

Chattanooga to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 306
Cheapest month to flyMarch

Finding cheap flights from Chattanooga to Washington Dulles: Frequently asked questions

The best price we found for a return flight from Chattanooga to Washington Dulles is ر.ق.‏ 955. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chattanooga to Washington Dulles. But we found flights with one or more stops from ر.ق.‏ 955.
As of February 2026, there are no flights flying from Chattanooga to Washington Dulles.
The cheapest month to fly from Chattanooga to Washington Dulles is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chattanooga Airport to Washington Dulles Airport on Friday, 8 May 2026.
No airlines currently offer direct flights between Chattanooga Airport and Washington Dulles Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Allegiant Air offers the cheapest flight tickets to Washington Dulles.

Travelling from Chattanooga Airport (CHA) to Washington Dulles International Airport (IAD): what you need to know

  • Chattanooga and Washington DC are in the UTC-4 timezone. That means there's no time difference to adjust for.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Be at the airport on time to board your CHA to IAD flight.

  • During popular months such as June, you'll want to get to the airport earlier than usual. Plan to arrive two hours before a domestic departure and four hours ahead for international flights whenever you're flying during a peak period in general.

  • Think about adding a stopover when booking your ticket from Chattanooga Airport to Washington Dulles International Airport. Simply deselect 'Direct flights only' to break up your trip, or enjoy a detour to a new and interesting place. Here are some options between CHA and IAD:

    • Hartsfield-Jackson Atlanta International Airport

    • Charlotte Douglas International Airport

    • Dallas/Fort Worth International Airport

How to find the cheapest flights from Chattanooga Airport (CHA) to Washington Dulles International Airport (IAD)

  • The lowest price we've found for a one-way Chattanooga Airport to Washington Dulles International Airport flight is ر.ق.‏ 306. A round-trip plane ticket right now is ر.ق.‏ 955. Depending on the availability when you book, these fares may change.

  • Don't leave everything to the last minute. You're more likely to find cheap tickets from CHA to IAD if you book early. Airlines often have some excellent early bird discounts.

  • Finding cheap flights from Chattanooga Airport to Washington Dulles International Airport is more likely if you can be flexible with your travel plans. Use the 'Whole month' tool to see the best prices across the month and bag a great deal.

  • Picking up cheap flights from CHA to IAD is easy with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch as soon as there's a better deal.

  • Lock in the right flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Chattanooga Airport to Washington Dulles International Airport, use the 'Sort by' tool. You can also filter by arrival and departure times, airline, and number of stops.

Handy information about Chattanooga Airport (CHA)

  • 76.74% of flights that take off from Chattanooga Airport arrive at their destination on schedule.

  • Central Chattanooga to Chattanooga Airport is around 21 kilometres. Depending on traffic, it'll take you about 15 minutes to get there if you're catching a cab, ride-sharing or driving.

  • Catching public transport? Expect a trip time of around 1 hour 10 minutes.

  • Taking an early flight from Chattanooga Airport to Washington Dulles International Airport? Avoid rushing to the airport (and catch some extra z's) by choosing one of these stays close to CHA:

Arriving at Washington Dulles International Airport (IAD)

Getting from Washington Dulles International Airport (IAD) to central Washington DC

  • You'll find IAD at 1 Saarinen Circle.

  • Washington Dulles International Airport to central Washington DC has a drive time of about 50 minutes. It's approximately 56 kilometres away.

  • Getting to the centre on public transport will take you roughly 3 hours 25 minutes.

When to fly to Washington Dulles International Airport (IAD)

  • April is the busiest month for flights from Chattanooga Airport to Washington Dulles International Airport. For smaller crowds, go to Washington DC in January.

  • Book your flight from Chattanooga Airport to Washington Dulles International Airport for July if you want to go to Washington DC during its warmest month. You can expect temperatures of between 19ºC and 33ºC.

  • Search for cheap tickets from CHA to IAD in January if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between -6ºC and 10ºC on average.

Explore more of United States

  • You've visited Washington DC, now it's time to discover other corners of United States. Journey about 322 kilometres north-east to New York to tick off its leading attractions. From Statue of Liberty to Central Park and Empire State Building, you'll have a packed itinerary ahead.

  • Around 193 kilometres north-east of Washington DC, Philadelphia is another essential stop in United States. Start your sightseeing at Liberty Bell, Independence Hall and Philadelphia Museum of Art.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.