What is the cheapest month to book a flight from Columbia, Missouri to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Columbia, Missouri to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Columbia, Missouri to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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 is the cheapest day to fly from Columbia, Missouri to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Columbia, Missouri to Washington, D.C. Dulles Intl Airport flight should consider departing on Monday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from COU to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Columbia, Missouri to Washington, D.C. Dulles Intl Airport as you normally would.

What airport do you fly from for flights from Columbia to Washington, D.C. Dulles Intl?

If you book a flight to Washington, D.C. Dulles Intl from Columbia, you will be flying from Columbia Regional, which is the city’s only airport. Columbia Regional (COU) is located 11.1 mi from the center of Columbia. There are 0 flights from Columbia Regional to Washington, D.C. Dulles Intl per day from 0 different airlines.

Can I find deals for flights from Columbia to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Columbia to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Columbia to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Columbia to Dulles Intl.

Can I find deals for business class flights from Columbia to Dulles Intl?

Yes. Cheapflights offers flight deals from Columbia to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$338+ Flights from Columbia, MO to Washington, D.C. Dulles Intl Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Columbia to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Columbia to Dulles Intl

Round-trip from	$338 (United Airlines)

From Columbia Regional to Washington, D.C. Dulles Intl

Search Deals

Find flight deals from Columbia to Dulles Intl

Cheapest flights from Columbia to Dulles Intl
Explore the most affordable flight options available from Columbia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Sat 12/133:16 pmCOU - IAD

1 stop5h 04mUnited Airlines

Tue 12/165:15 pmIAD - COU

1 stop4h 55mUnited Airlines

Deal found 7/2

$338

Sat 12/131:34 pmCOU - IAD

2 stops9h 21mAmerican Airlines

Tue 12/165:00 amIAD - COU

2 stops9h 03mAmerican Airlines

Deal found 7/2

$449

Best flights from Columbia to Dulles Intl
Discover carefully curated flight deals from Columbia to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Sat 12/133:16 pmCOU - IAD

1 stop5h 04mUnited Airlines

Tue 12/165:15 pmIAD - COU

1 stop4h 55mUnited Airlines

Deal found 7/2

$338

Sat 12/131:34 pmCOU - IAD

2 stops9h 21mAmerican Airlines

Tue 12/165:00 amIAD - COU

2 stops9h 03mAmerican Airlines

Deal found 7/2

$449

Last-minute flights from Columbia to Dulles Intl
Discover last-minute flight deals from Columbia to Dulles Intl. Data last updated July 3, 2025 and is based on user searches.

Sat 8/166:15 amCOU - IAD

2 stops16h 42mAmerican Airlines

Sat 8/231:18 pmIAD - COU

2 stops8h 05mAmerican Airlines

Deal found 7/2

$423

One-way flights from Columbia to Dulles Intl
Search for one-way flight options from Columbia to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Sun 7/2012:35 pmCOU - IAD

1 stop9h 11mAmerican Airlines

Deal found 7/1

$556

Cheapflights Fare Finder

Use the filters below to find and compare flights from Columbia to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Sat 12/13

3:16 pm-9:20 pm

1 stop5h 04m

Washington, D.C. Dulles Intl

Tue 12/16

5:15 pm-9:10 pm

1 stop4h 55m

$338

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Sat 12/13

1:34 pm-11:55 pm

2 stops9h 21m

Washington, D.C. Dulles Intl

Tue 12/16

5:00 am-1:03 pm

2 stops9h 03m

$449

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Sun 7/20

12:35 pm-10:46 pm

1 stop9h 11m

$556

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Columbia to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Columbia 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.

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with United Airlines and American Airlines from Columbia to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,861 reviews

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

What airport do you fly from for flights from Columbia to Washington, D.C. Dulles Intl?
If you book a flight to Washington, D.C. Dulles Intl from Columbia, you will be flying from Columbia Regional, which is the city’s only airport. Columbia Regional (COU) is located 11.1 mi from the center of Columbia. There are 0 flights from Columbia Regional to Washington, D.C. Dulles Intl per day from 0 different airlines.
Can I find deals for flights from Columbia to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Columbia to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Columbia to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Columbia to Dulles Intl.
Can I find deals for business class flights from Columbia to Dulles Intl?
Yes. Cheapflights offers flight deals from Columbia to Dulles Intl 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 Columbia, Missouri to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Columbia, Missouri to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Columbia, Missouri to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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

Arlington

Woodbridge

Alexandria

Tysons

Silver Spring

Fredericksburg

Linthicum Heights

Gaithersburg

Fairfax

Easton

Towson

Waldorf

Laurel

Falls Church

Rockville

Springfield

National Harbor

Manassas

Dundalk

Bowie

Browse thousands of different options on Cheapflights for your next trip

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$338+ Cheap flights from Columbia, MO (COU) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Columbia to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Columbia to Dulles Intl

Round-trip from

Find flight deals from Columbia to Dulles Intl

Cheapest flights from Columbia to Dulles IntlExplore the most affordable flight options available from Columbia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Columbia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Columbia to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Columbia to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Columbia with our price prediction graph.

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with United Airlines and American Airlines from Columbia to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Columbia to Dulles Intl. 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 Columbia to Washington, D.C. Dulles Intl?

Can I find deals for flights from Columbia to Dulles Intl that include hotel bookings?

How can I find direct flights from Columbia to Dulles Intl?

Can I find deals for business class flights from Columbia to Dulles Intl?

What is the cheapest month to book a flight from Columbia, Missouri to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Columbia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Columbia to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Columbia to Dulles Intl
Explore the most affordable flight options available from Columbia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.