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

One-way options have recently been found by users for as low as $262 on Icelandair. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $309 and Scandinavian Airlines from $353 one-way.

In terms of precipitation, rainfall in Belgium ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. August is typically the driest time to visit Belgium when rainfall is around 1.6 in.

If weather is an important factor for your trip to Belgium, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 37.4 F).

What are the most popular routes from Washington, D.C. Dulles Intl Airport to Belgium?

While some choose either Washington, D.C. Dulles Intl - Charleroi Brussels or Washington, D.C. Dulles Intl - Liège Bierset, Washington, D.C. Dulles Intl - Brussels Bruxelles-National is the most popular route from Washington, D.C. Dulles Intl Airport to Belgium.

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Belgium?

The cheapest flight price from Washington, D.C. Dulles Intl Airport to Belgium is $420. On average you can expect to pay $2,207. The most popular route, (Washington, D.C. Dulles Intl - Brussels Bruxelles-National), can usually be booked for $317.

What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Belgium?

No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Belgium consider choosing Brussels Airlines (57%), United Airlines (57%) or Air Canada (41%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Belgium?

When booking a flight from Washington, D.C. Dulles Intl Airport to Belgium, you may want to consider flying on British Airways, Aer Lingus or Icelandair as they are the most popular for this route.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, January can be a great choice for travel to Belgium. Flights to Belgium from Washington, D.C. Dulles Intl Airport in January are about $841 on average during January, but can be found for as low as $396.

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

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

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

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

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

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

$603+ Flights from Washington, D.C. Dulles Intl Airport to Belgium

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

Find cheap flights from Dulles Intl to Belgium 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 Dulles Intl to Belgium

Round-trip from	$569 (Scandinavian Airlines)
One-way from	$262 (SmartFares)
Popular in	December
Cheapest in	January
Average price	$947
Good round-trip deal	$677 or less
Good one-way deal	$636 or less

From Washington, D.C. Dulles Intl to Belgium

Search Deals

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

Search Deals

Highest demand for flights based on searches. 1% potential increase in price ($11 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Belgium.

Search Deals

Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Belgium.

Search Deals

Find flight deals from Dulles Intl to Belgium

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

Wed 11/58:30 pmIAD - BRU

1 stop31h 10mScandinavian Airlines

Sat 11/1510:20 amBRU - IAD

1 stop14h 30mScandinavian Airlines

Deal found 7/2

$569

Wed 12/108:30 pmIAD - BRU

2 stops32h 20mMultiple Airlines

Mon 12/156:30 amBRU - IAD

2 stops16h 45mMultiple Airlines

Deal found 7/2

$571

Mon 8/185:45 pmIAD - CRL

2 stops18h 40mMultiple Airlines

Wed 8/2711:05 amCRL - IAD

2 stops15h 45mMultiple Airlines

Deal found 7/1

$576

Tue 12/25:30 pmIAD - BRU

1 stop17h 35mTAP AIR PORTUGAL

Thu 12/116:00 amBRU - IAD

1 stop15h 15mTAP AIR PORTUGAL

Deal found 7/1

$577

Sun 8/101:03 pmIAD - BRU

1 stop12h 57mUnited Airlines

Tue 8/1912:00 pmBRU - IAD

Nonstop8h 25mUnited Airlines

Deal found 7/2

$578

Mon 8/48:30 pmIAD - BRU

1 stop10h 20mIcelandair

Wed 8/131:50 pmBRU - IAD

1 stop11h 30mIcelandair

Deal found 7/1

$586

Wed 12/39:00 amIAD - BRU

2 stops16h 50mAir Canada

Tue 12/910:00 amBRU - IAD

2 stops17h 22mAir Canada

Deal found 7/2

$598

Wed 10/297:00 amIAD - BRU

2 stops20h 00mVirgin Atlantic

Thu 11/611:00 amBRU - IAD

2 stops18h 17mVirgin Atlantic

Deal found 6/30

$611

Sat 7/268:31 pmIAD - BRU

1 stop30h 09mDelta

Tue 8/1910:45 amBRU - IAD

1 stop31h 17mDelta

Deal found 7/1

$617

Mon 8/45:35 pmIAD - BRU

Nonstop7h 50mBrussels Airlines

Thu 8/1410:45 amBRU - IAD

Nonstop8h 45mBrussels Airlines

Deal found 7/1

$622

Sun 10/266:45 pmIAD - BRU

Nonstop7h 30mAustrian Airlines

Mon 11/105:45 pmBRU - IAD

1 stop26h 55mAustrian Airlines

Deal found 7/2

$633

Sat 8/165:00 pmIAD - ANR

2 stops19h 55mMultiple Airlines

Sat 8/237:00 amANR - IAD

3 stops38h 20mMultiple Airlines

Deal found 7/2

$1,334

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

Wed 11/58:30 pmIAD - BRU

1 stop31h 10mScandinavian Airlines

Sat 11/1510:20 amBRU - IAD

1 stop14h 30mScandinavian Airlines

Deal found 7/2

$569

Wed 12/108:30 pmIAD - BRU

2 stops32h 20mMultiple Airlines

Mon 12/156:30 amBRU - IAD

2 stops16h 45mMultiple Airlines

Deal found 7/2

$571

Tue 12/25:30 pmIAD - BRU

1 stop17h 35mTAP AIR PORTUGAL

Thu 12/116:00 amBRU - IAD

1 stop15h 15mTAP AIR PORTUGAL

Deal found 7/1

$577

Sun 8/101:03 pmIAD - BRU

1 stop12h 57mUnited Airlines

Tue 8/1912:00 pmBRU - IAD

Nonstop8h 25mUnited Airlines

Deal found 7/2

$578

Mon 8/48:30 pmIAD - BRU

1 stop10h 20mIcelandair

Wed 8/131:50 pmBRU - IAD

1 stop11h 30mIcelandair

Deal found 7/1

$586

Wed 12/39:00 amIAD - BRU

2 stops16h 50mAir Canada

Tue 12/910:00 amBRU - IAD

2 stops17h 22mAir Canada

Deal found 7/2

$598

Wed 10/297:00 amIAD - BRU

2 stops20h 00mVirgin Atlantic

Thu 11/611:00 amBRU - IAD

2 stops18h 17mVirgin Atlantic

Deal found 6/30

$611

Sat 7/268:31 pmIAD - BRU

1 stop30h 09mDelta

Tue 8/1910:45 amBRU - IAD

1 stop31h 17mDelta

Deal found 7/1

$617

Mon 8/45:35 pmIAD - BRU

Nonstop7h 50mBrussels Airlines

Thu 8/1410:45 amBRU - IAD

Nonstop8h 45mBrussels Airlines

Deal found 7/1

$622

Sun 10/266:45 pmIAD - BRU

Nonstop7h 30mAustrian Airlines

Mon 11/107:55 pmBRU - IAD

1 stop24h 45mAustrian Airlines

Deal found 7/3

$633

Mon 8/185:45 pmIAD - CRL

2 stops18h 40mMultiple Airlines

Wed 8/2711:05 amCRL - IAD

2 stops15h 45mMultiple Airlines

Deal found 7/1

$576

Sat 8/165:00 pmIAD - ANR

2 stops19h 55mMultiple Airlines

Sat 8/237:00 amANR - IAD

3 stops38h 20mMultiple Airlines

Deal found 7/2

$1,334

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

Tue 7/85:00 pmIAD - BRU

1 stop16h 05mTAP AIR PORTUGAL

Tue 10/711:50 amBRU - IAD

1 stop15h 00mTAP AIR PORTUGAL

Deal found 7/2

$654

Tue 7/85:00 pmIAD - CRL

3 stops21h 45mMultiple Airlines

Tue 10/77:35 amCRL - IAD

3 stops19h 50mMultiple Airlines

Deal found 7/2

$854

Wed 7/95:20 pmIAD - BRU

1 stop10h 20mAer Lingus

Tue 10/1410:20 amBRU - IAD

1 stop15h 10mAer Lingus

Deal found 7/2

$669

Wed 7/910:05 pmIAD - BRU

2 stops14h 15mScandinavian Airlines

Tue 10/2811:30 amBRU - IAD

2 stops35h 45mScandinavian Airlines

Deal found 7/2

$697

Wed 7/911:15 pmIAD - BRU

2 stops15h 50mMultiple Airlines

Tue 10/286:00 amBRU - IAD

3 stops42h 45mMultiple Airlines

Deal found 7/2

$1,023

Thu 7/101:30 pmIAD - BRU

1 stop14h 40mTurkish Airlines

Wed 7/1611:15 amBRU - IAD

1 stop30h 30mTurkish Airlines

Deal found 7/1

$1,012

Sat 7/124:30 pmIAD - BRU

1 stop12h 10mITA Airways

Wed 7/166:55 pmBRU - IAD

1 stop25h 45mITA Airways

Deal found 7/1

$869

Tue 7/226:00 amIAD - BRU

1 stop20h 40mVirgin Atlantic

Fri 8/1510:45 amBRU - IAD

1 stop16h 57mVirgin Atlantic

Deal found 7/1

$636

Sat 7/265:10 pmIAD - BRU

2 stops32h 40mAir Canada

Tue 8/1910:00 amBRU - IAD

2 stops31h 33mAir Canada

Deal found 7/1

$598

Sat 7/268:31 pmIAD - BRU

1 stop30h 09mDelta

Tue 8/1910:45 amBRU - IAD

1 stop31h 17mDelta

Deal found 7/1

$617

Mon 7/285:35 pmIAD - BRU

Nonstop7h 50mMultiple Airlines

Tue 8/1910:30 amBRU - IAD

1 stop11h 20mMultiple Airlines

Deal found 7/1

$572

Mon 8/48:30 pmIAD - BRU

1 stop10h 20mIcelandair

Wed 8/131:50 pmBRU - IAD

1 stop11h 30mIcelandair

Deal found 7/1

$586

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

Mon 9/18:30 pmIAD - BRU

1 stop10h 20mIcelandair

Deal found 7/1

$262

Wed 7/3011:15 pmIAD - CRL

2 stops41h 40mMultiple Airlines

Deal found 7/2

$283

Thu 8/71:29 pmIAD - BRU

3 stops37h 46mMultiple Airlines

Deal found 7/1

$302

Thu 8/75:50 pmIAD - BRU

1 stop24h 05mTAP AIR PORTUGAL

Deal found 7/1

$309

Tue 9/1612:08 pmIAD - BRU

2 stops16h 07mScandinavian Airlines

Deal found 7/3

$353

Sun 7/274:30 pmIAD - ANR

2 stops23h 50mMultiple Airlines

Deal found 7/3

$390

Wed 7/305:35 pmIAD - BRU

Nonstop7h 50mBrussels Airlines

Deal found 7/2

$460

Fri 8/156:35 amIAD - BRU

2 stops19h 15mUnited Airlines

Deal found 6/30

$526

Tue 9/97:25 pmIAD - BRU

1 stop13h 00mBritish Airways

Deal found 7/2

$797

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 11/5

8:30 pm-9:40 am

1 stop31h 10m

Brussels Bruxelles-National

Sat 11/15

10:20 am-6:50 pm

1 stop14h 30m

$569

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 12/10

8:30 pm-10:50 am

2 stops32h 20m

Brussels Bruxelles-National

Mon 12/15

6:30 am-5:15 pm

2 stops16h 45m

$571

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Mon 8/18

5:45 pm-6:25 pm

2 stops18h 40m

Charleroi Brussels

Wed 8/27

11:05 am-8:50 pm

2 stops15h 45m

$576

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Tue 12/2

5:30 pm-5:05 pm

1 stop17h 35m

Brussels Bruxelles-National

Thu 12/11

6:00 am-3:15 pm

1 stop15h 15m

$577

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 8/10

1:03 pm-8:00 am

1 stop12h 57m

Brussels Bruxelles-National

Tue 8/19

12:00 pm-2:25 pm

Nonstop8h 25m

$578

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Mon 8/4

8:30 pm-12:50 pm

1 stop10h 20m

Brussels Bruxelles-National

Wed 8/13

1:50 pm-7:20 pm

1 stop11h 30m

$586

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 12/3

9:00 am-7:50 am

2 stops16h 50m

Brussels Bruxelles-National

Tue 12/9

10:00 am-9:22 pm

2 stops17h 22m

$598

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 10/29

7:00 am-8:00 am

2 stops20h 00m

Brussels Bruxelles-National

Thu 11/6

11:00 am-11:17 pm

2 stops18h 17m

$611

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sat 7/26

8:31 pm-8:40 am

1 stop30h 09m

Brussels Bruxelles-National

Tue 8/19

10:45 am-12:02 pm

1 stop31h 17m

$617

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Mon 8/4

5:35 pm-7:25 am

Nonstop7h 50m

Brussels Bruxelles-National

Thu 8/14

10:45 am-1:30 pm

Nonstop8h 45m

$622

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 21 results

Best time to book a flight from Dulles Intl to Belgium

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

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belgium (average of $614). Flying from Washington, D.C. Dulles Intl Airport to Belgium in June is currently the most expensive (average of $1,079). 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 time of day to fly from IAD to BE?

When flying from Washington, D.C. Dulles Intl Airport to Belgium, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Belgium

The most flights from IAD to BE0 are scheduled on a Monday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

Reviews of airlines servicing Belgium

Get a feel of what it's like to fly with Delta, Austrian Airlines, and United Airlines from Washington, D.C. Dulles Intl Airport to Belgium by reading reviews from past customers. Users have also rated airlines in terms of 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!

Austrian Airlines

7.6

Good

809 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!

United Airlines

7.4

Good

8,861 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!

Virgin Atlantic

7.4

Good

654 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!

Scandinavian Airlines

7.3

Good

1,416 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 to fly from Washington, D.C. Dulles Intl Airport to Belgium one-way?
One-way options have recently been found by users for as low as $262 on Icelandair. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $309 and Scandinavian Airlines from $353 one-way.
What are the most popular routes from Washington, D.C. Dulles Intl Airport to Belgium?
While some choose either Washington, D.C. Dulles Intl - Charleroi Brussels or Washington, D.C. Dulles Intl - Liège Bierset, Washington, D.C. Dulles Intl - Brussels Bruxelles-National is the most popular route from Washington, D.C. Dulles Intl Airport to Belgium.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Belgium?
No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Belgium consider choosing Brussels Airlines (57%), United Airlines (57%) or Air Canada (41%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Belgium?
The cheapest flight price from Washington, D.C. Dulles Intl Airport to Belgium is $420. On average you can expect to pay $2,207. The most popular route, (Washington, D.C. Dulles Intl - Brussels Bruxelles-National), can usually be booked for $317.
Can I find deals for flights from Dulles Intl to Belgium that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Belgium flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Belgium?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Belgium.
Can I find deals for business class flights from Dulles Intl to Belgium?
Yes. Cheapflights offers flight deals from Dulles Intl to Belgium 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 Washington, D.C. Dulles Intl Airport to Belgium?
Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belgium (average of $614). Flying from Washington, D.C. Dulles Intl Airport to Belgium in June is currently the most expensive (average of $1,079). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Belgium

Dulles Intl to Heathrow flights

Baltimore to Heathrow flights

Dulles Intl to Charles de Gaulle flights

Dulles Intl to Leonardo da Vinci/Fiumicino flights

Dulles Intl to Dublin flights

Reagan-National to Heathrow flights

Dulles Intl to Gatwick flights

Dulles Intl to Madrid flights

Dulles Intl to Lisbon flights

Dulles Intl to London City flights

Dulles Intl to Istanbul flights

Dulles Intl to Athens flights

Baltimore to Gatwick flights

Reagan-National to Gatwick flights

Dulles Intl to Frankfurt flights

Dulles Intl to Orly flights

Baltimore to Charles de Gaulle flights

Reagan-National to Charles de Gaulle flights

Baltimore to Leonardo da Vinci/Fiumicino flights

Reagan-National to Leonardo da Vinci/Fiumicino flights

Dulles Intl to Barcelona-El Prat flights

Reagan-National to Orly flights

Dulles Intl to Amsterdam flights

Reagan-National to Madrid flights

Dulles Intl to Stansted flights

Baltimore to Madrid flights

Baltimore to Dublin flights

Reagan-National to Dublin flights

Dulles Intl to Edinburgh flights

Dulles Intl to Keflavik Intl flights

Baltimore to Stansted flights

Baltimore to Lisbon flights

Dulles Intl to Zurich flights

Reagan-National to Lisbon flights

Dulles Intl to Luton flights

Reagan-National to Athens flights

Baltimore to Keflavik Intl flights

Dulles Intl to Munich flights

Reagan-National to Istanbul flights

Baltimore to Athens flights

Baltimore to Luton flights

Dulles Intl to Bruxelles-National flights

Reagan-National to Keflavik Intl flights

Baltimore to Istanbul flights

Dulles Intl to Copenhagen flights

Baltimore to Frankfurt flights

Dulles Intl to Vienna flights

Reagan-National to Frankfurt flights

Reagan-National to London City flights

Dulles Intl to Vicenza flights

Top 10 airlines flying from Dulles Intl to Belgium

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest$369	Average$560	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$406	Average$575	FlexibilityNo cancel fee	On-time77%
Icelandair	Cheapest$449	Average$938	FlexibilityNo cancel fee	On-time76%
TAP AIR PORTUGAL	Cheapest$492	Average$954	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$516	Average$726	FlexibilityNo cancel fee	On-time70%
Turkish Airlines	Cheapest$552	Average$661	FlexibilityNo cancel fee	On-time77%
Aer Lingus	Cheapest$564	Average$792	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$624	Average$1,053	FlexibilityNo cancel fee	On-time69%
Brussels Airlines	Cheapest$633	Average$1,148	FlexibilityNo cancel fee	On-timeN/A
Lufthansa	Cheapest$694	Average$1,113	FlexibilityNo cancel fee	On-time76%

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.

$262+ Cheap flights from Dulles Intl (IAD) to Belgium

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Belgium with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to Belgium

Keep the following information in mind while searching for Dulles Intl to Belgium flight deals. Data was last updated July 3, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Dulles Intl to Belgium

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

Best time to book a flight from Dulles Intl to Belgium

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Dulles Intl to Belgium. 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.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Belgium

Explore weekly flight availability from Dulles Intl to Belgium. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

Reviews of airlines servicing Belgium

Get a feel of what it's like to fly with Delta, Austrian Airlines, and United Airlines from Washington, D.C. Dulles Intl Airport to Belgium by reading reviews from past customers. Users have also rated airlines 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 Dulles Intl to Belgium. 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 to fly from Washington, D.C. Dulles Intl Airport to Belgium one-way?

What are the most popular routes from Washington, D.C. Dulles Intl Airport to Belgium?

What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Belgium?

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Belgium?

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

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

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

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

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 Dulles Intl to Belgium

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

Top 10 airlines flying from Dulles Intl to Belgium

100% Free

Book with Flexibility

Travel Smart

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