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

Currently, August is the cheapest month in which you can book a flight from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Chicago Midway Airport 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.

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).

How far in advance should I book a flight from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport?

To save on the cost of your flight from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport, book at least 42 days before your planned departure. Booking around this time can save you about 77% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $248 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $380.

What is the cheapest month to fly from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport?

The best pricing can be found in the month of September. Prices to Washington, D.C. Dulles Intl Airport from Chicago Midway Airport average $229. You can even find prices in September for less than $229, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $62. The month of January appears to be one of the more expensive times to travel to Washington, D.C. Dulles Intl Airport from Chicago Midway Airport. Flying in the targeted month can save you up to 10%.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Midway 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.

$81+ Flights from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport

Q: What is the cheapest day to fly from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport?

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

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Cheap flight deals from Midway to Dulles Intl

Round-trip from	$150 (Priceline)
One-way from	$81 (FlightHub)
Popular in	July
Cheapest in	October
Average price	$686

From Chicago Midway to Washington, D.C. Dulles Intl

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One-way flight from Chicago Midway to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 27% potential increase in price ($138 potential increase over avg. RT price).

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Cheapest flight prices on average. 10% potential price decrease ($35 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Midway to Dulles Intl

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

Sat 9/1310:51 amMDW - IAD

1 stop6h 21mFrontier

Mon 9/1510:12 amIAD - MDW

1 stop11h 40mFrontier

Deal found 7/1

$150

Thu 9/116:00 amMDW - IAD

1 stop4h 40mDelta

Mon 9/155:25 pmIAD - MDW

1 stop5h 11mDelta

Deal found 7/2

$197

Best flights from Midway to Dulles Intl
Discover carefully curated flight deals from Midway 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 9/1310:51 amMDW - IAD

1 stop6h 21mFrontier

Mon 9/1510:12 amIAD - MDW

1 stop11h 40mFrontier

Deal found 7/1

$150

Thu 9/116:00 amMDW - IAD

1 stop4h 40mDelta

Mon 9/155:25 pmIAD - MDW

1 stop5h 11mDelta

Deal found 7/3

$197

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

Wed 7/910:30 amMDW - IAD

1 stop4h 55mDelta

Fri 7/111:00 pmIAD - MDW

1 stop6h 40mDelta

Deal found 7/1

$549

Sat 7/126:20 amMDW - IAD

1 stop7h 56mFrontier

Tue 7/156:10 amIAD - MDW

1 stop5h 30mFrontier

Deal found 7/2

$157

Fri 7/186:20 amMDW - IAD

1 stop6h 29mFrontier

Thu 8/71:29 pmIAD - MDW

1 stop7h 53mFrontier

Deal found 7/2

$151

Sat 8/166:04 amMDW - IAD

1 stop4h 19mDelta

Sat 8/236:00 amIAD - MDW

1 stop4h 36mDelta

Deal found 7/2

$201

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

Thu 9/45:04 pmMDW - IAD

1 stop6h 02mFrontier

Deal found 7/1

$81

Fri 8/229:32 amMDW - IAD

1 stop4h 51mAllegiant Air

Deal found 7/3

$87

Wed 10/89:30 amMDW - IAD

1 stop6h 01mDelta

Deal found 7/3

$99

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Sat 9/13

10:51 am-6:12 pm

1 stop6h 21m

Washington, D.C. Dulles Intl

Mon 9/15

10:12 am-8:52 pm

1 stop11h 40m

$150

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Thu 9/11

6:00 am-11:40 am

1 stop4h 40m

Washington, D.C. Dulles Intl

Mon 9/15

5:25 pm-9:36 pm

1 stop5h 11m

$197

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Thu 9/4

5:04 pm-12:06 am

1 stop6h 02m

$81

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Fri 8/22

9:32 am-3:23 pm

1 stop4h 51m

$93

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Wed 8/6

6:00 am-2:42 pm

1 stop7h 42m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Midway to Dulles Intl

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

Cheapflights Insights

Everything you need to know about your flight from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport

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

A simple way to save on the total cost of your ticket is to fly from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 52% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Delta, Allegiant Air, and Frontier from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Allegiant Air

7.3

Good

708 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Frontier

5.9

Fair

3,286 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport round-trip?
According to our current data, Frontier ($150), and Delta ($197) offers the cheapest pricing from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport. Frontier is currently priced 59% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $81. However, be on the lookout for offers from Allegiant Air and Delta, as they are both options that can get you from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport for a low price.
Can I find deals for flights from Midway to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Midway to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Midway to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Midway to Dulles Intl.
Can I find deals for business class flights from Midway to Dulles Intl?
Yes. Cheapflights offers flight deals from Midway 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 Chicago Midway Airport to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Chicago Midway Airport 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.

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Top 2 airlines flying from Midway to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$122	Average$291	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$186	Average$437	FlexibilityNo cancel fee	On-timeN/A

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$81+ Cheap flights from Midway (MDW) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Midway to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

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Cheap flight deals from Midway to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

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Find flight deals from Midway to Dulles Intl

Cheapest flights from Midway to Dulles IntlExplore the most affordable flight options available from Midway 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 Midway 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 Chicago Midway Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Midway to Dulles Intl

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

Cheapflights Insights

Everything you need to know about your flight from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport

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

Find hourly flight availability from Midway to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Delta, Allegiant Air, and Frontier from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Midway 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 are the cheapest airlines flying from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport round-trip?

What are the cheapest airlines to fly from Chicago Midway Airport to Washington, D.C. Dulles Intl Airport one-way?

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

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

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

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

Traveling to a place near Chicago Midway Airport?

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Alternative routes for Midway to Dulles Intl

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

Top 2 airlines flying from Midway to Dulles Intl

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