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

December is one of the best times of the year to fly to Washington, D.C. Dulles Intl Airport from Springfield, Illinois. Prices for December average $422 per person but you can even find prices for as low as $250. The most expensive prices can be found in the month of June. Opting for a December flight can save you 57% on your journey compared to booking in June

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

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

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

If you book a flight to Washington, D.C. Dulles Intl from Springfield, you will be flying from Capital, which is the city’s only airport. Springfield Capital (SPI) is located 3.4 mi from the center of Springfield. There are 0 flights from Capital to Washington, D.C. Dulles Intl per day from 0 different airlines.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Springfield 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.

$308+ Flights from Springfield, IL 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 Springfield 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 Springfield to Dulles Intl

Round-trip from	$439 (American Airlines)
One-way from	$308 (American Airlines)
Popular in	June
Cheapest in	December
Average price	$665

From Springfield Capital to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Springfield Capital to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($38 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from Springfield to Dulles Intl

Cheapest flights from Springfield to Dulles Intl
Explore the most affordable flight options available from Springfield to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Tue 6/241:10 pmSPI - IAD

2 stops9h 49mAmerican Airlines

Mon 6/306:55 amIAD - SPI

2 stops6h 45mAmerican Airlines

Deal found 6/10

$439

Mon 7/78:09 pmSPI - IAD

3 stops24h 00mMultiple Airlines

Thu 7/108:25 amIAD - SPI

3 stops35h 54mMultiple Airlines

Deal found 6/10

$608

Best flights from Springfield to Dulles Intl
Discover carefully curated flight deals from Springfield to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Tue 6/241:10 pmSPI - IAD

2 stops9h 49mAmerican Airlines

Mon 6/306:55 amIAD - SPI

2 stops6h 45mAmerican Airlines

Deal found 6/10

$439

Mon 7/78:09 pmSPI - IAD

3 stops24h 00mMultiple Airlines

Thu 7/108:25 amIAD - SPI

3 stops35h 54mMultiple Airlines

Deal found 6/10

$608

Last-minute flights from Springfield to Dulles Intl
Discover last-minute flight deals from Springfield to Dulles Intl. Data last updated June 12, 2025 and is based on user searches.

Fri 6/201:10 pmSPI - IAD

2 stops9h 49mAmerican Airlines

Mon 6/236:55 amIAD - SPI

2 stops6h 45mAmerican Airlines

Deal found 6/12

$636

Tue 6/241:10 pmSPI - IAD

2 stops9h 49mAmerican Airlines

Mon 6/306:55 amIAD - SPI

2 stops6h 45mAmerican Airlines

Deal found 6/10

$439

Mon 7/78:09 pmSPI - IAD

3 stops24h 00mMultiple Airlines

Thu 7/108:25 amIAD - SPI

3 stops35h 54mMultiple Airlines

Deal found 6/10

$608

One-way flights from Springfield to Dulles Intl
Search for one-way flight options from Springfield to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Mon 7/286:36 pmSPI - IAD

2 stops15h 23mAmerican Airlines

Deal found 6/11

$308

Wed 6/259:25 amSPI - IAD

3 stops25h 01mMultiple Airlines

Deal found 6/12

$392

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SpringfieldWashington, D.C.

SPI - IAD

SPIIAD

Springfield Capital

Tue 6/24

1:10 pm-11:59 pm

2 stops9h 49m

Washington, D.C. Dulles Intl

Mon 6/30

6:55 am-12:40 pm

2 stops6h 45m

$439

SpringfieldWashington, D.C.

SPI - IAD

SPIIAD

Springfield Capital

Mon 7/7

8:09 pm-9:09 pm

3 stops24h 00m

Washington, D.C. Dulles Intl

Thu 7/10

8:25 am-7:19 pm

3 stops35h 54m

$608

SpringfieldWashington, D.C.

SPI - IAD

SPIIAD

Springfield Capital

Mon 7/28

6:36 pm-10:59 am

2 stops15h 23m

$308

SpringfieldWashington, D.C.

SPI - IAD

SPIIAD

Springfield Capital

Wed 6/25

9:25 am-11:26 am

3 stops25h 01m

$392

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Springfield to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Springfield 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 Springfield to Washington, D.C. Dulles Intl Airport

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

Currently, August is the cheapest month in which you can book a flight from Springfield, Illinois to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Springfield, Illinois to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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.

Rainfall in Dulles Intl by month

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.

Temperature in Dulles Intl by month

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).

Reviews of airlines servicing Dulles Intl

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

2.0

Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

American Airlines

7.2

Good

10,000 reviews

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

2.0

Mediocre

Andrew,May 2025

LAX - MIA

Related info for your journey

What airport do you fly from for flights from Springfield to Washington, D.C. Dulles Intl?
If you book a flight to Washington, D.C. Dulles Intl from Springfield, you will be flying from Capital, which is the city’s only airport. Springfield Capital (SPI) is located 3.4 mi from the center of Springfield. There are 0 flights from Capital to Washington, D.C. Dulles Intl per day from 0 different airlines.
Can I find deals for flights from Springfield to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Springfield to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Springfield to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Springfield to Dulles Intl.
Can I find deals for business class flights from Springfield to Dulles Intl?
Yes. Cheapflights offers flight deals from Springfield 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 Springfield, Illinois to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Springfield, Illinois to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Springfield, Illinois to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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

Alexandria

Woodbridge

Tysons

Silver Spring

Linthicum Heights

Fredericksburg

Gaithersburg

Fairfax

Falls Church

Easton

Herndon

Towson

Sterling

Bowie

Rockville

Reston

National Harbor

Springfield

Manassas

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.

$308+ Cheap flights from Springfield, IL (SPI) 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Springfield 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 Springfield to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Springfield to Dulles Intl

Cheapest flights from Springfield to Dulles IntlExplore the most affordable flight options available from Springfield to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from Springfield to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Springfield to Dulles Intl

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

Cheapflights Insights

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

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

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Related info for your journey

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

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

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

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

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

Traveling to a place near Springfield?

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 Springfield 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 Springfield to Dulles Intl
Explore the most affordable flight options available from Springfield to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.