What are the cheapest airlines to fly from Washington, D.C. to Heidelberg one-way?

One-way options have recently been found by users for as low as $270 on Icelandair. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $297 and Singapore Airlines from $379 one-way.

In terms of precipitation, rainfall in Heidelberg ranges from 1.6 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Heidelberg when rainfall is around 1.6 in.

If weather is an important factor for your trip to Heidelberg, 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 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

What are the most popular routes from Washington, D.C. to Heidelberg?

When deciding which route to take from Washington, D.C. to Heidelberg consider Washington, D.C. Dulles Intl - Frankfurt am Main, Baltimore/Washington - Frankfurt am Main or Washington, D.C. Reagan-National - Frankfurt am Main as they are the most popular.

What are the cheapest flights from Washington, D.C. to Heidelberg?

The cheapest flight price from Washington, D.C. to Heidelberg is $386. On average you can expect to pay $2,024. The most popular route, (Washington, D.C. Dulles Intl - Frankfurt am Main), can usually be booked for $508.

What are the most reliable airlines from Washington, D.C. to Heidelberg?

Before booking your flight to Heidelberg from Washington, D.C., check out the most reliable airlines to get you to your destination on time: Air Canada (58%), United Airlines (58%), Lufthansa( 58%).

What are the most popular airlines that fly from Washington, D.C. to Heidelberg?

American Airlines, Air France and British Airways are the most popular airlines when flying from Washington, D.C. to Heidelberg.

How far in advance should I book a flight from Washington, D.C. to Heidelberg?

To save up to 30% on this flight, we recommend booking at least 43 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Washington, D.C. to Heidelberg from $873 1-2 weeks out and tickets from $934 for flights departing within the next 72 hours.

What is the cheapest month to fly from Washington, D.C. to Heidelberg?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to Heidelberg. Flights to Heidelberg from Washington, D.C. in September are about $876 on average during September, but can be found for as low as $527.

Can I find deals for flights from Washington, D.C. to Heidelberg that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Heidelberg flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Heidelberg?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Heidelberg.

Can I find deals for business class flights from Washington, D.C. to Heidelberg?

Yes. Cheapflights offers flight deals from Washington, D.C. to Heidelberg by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$242+ Flights from Washington, D.C. to Heidelberg

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Cheapflights Tip: The best prices from Washington, D.C. to Heidelberg are usually found in September or January, booked 78 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Washington, D.C. to Heidelberg

Round-trip from	$514 (CrystalTravel)
One-way from	$242 (Kiwi.com)
Popular in	December
Cheapest in	September
Average price	$1,031

From Washington, D.C. (WAS) to Heidelberg

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One-way flight from Washington, D.C. (WAS) to Heidelberg

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Highest demand for flights based on searches. 0% potential increase in price ($6 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($24 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 Washington, D.C. to Heidelberg

Cheapest flights from Washington, D.C. to Heidelberg
Explore the most affordable flight options available from Washington, D.C. to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

Wed 12/37:30 pmBWI - FRA

1 stop10h 35mIcelandair

Sun 12/71:05 pmFRA - BWI

1 stop11h 25mIcelandair

Deal found 6/30

$514

Fri 9/58:30 pmIAD - FRA

1 stop10h 30mIcelandair

Fri 9/192:00 pmFRA - IAD

1 stop11h 20mIcelandair

Deal found 7/1

$646

Wed 12/3110:30 pmIAD - FRA

1 stop18h 10mTAP AIR PORTUGAL

Wed 1/146:00 amFRA - IAD

1 stop21h 00mTAP AIR PORTUGAL

Deal found 7/1

$648

Wed 10/112:08 pmIAD - FRA

2 stops20h 32mScandinavian Airlines

Sun 10/123:25 pmFRA - IAD

1 stop10h 34mScandinavian Airlines

Deal found 7/1

$653

Wed 10/110:20 pmIAD - FRA

2 stops16h 05mMultiple Airlines

Wed 10/159:00 pmFRA - IAD

2 stops29h 50mMultiple Airlines

Deal found 6/30

$671

Sun 8/105:31 pmIAD - FRA

1 stop11h 29mAir Canada

Tue 8/1912:20 pmFRA - IAD

Nonstop8h 55mAir Canada

Deal found 6/30

$673

Thu 8/146:50 pmBWI - FRA

2 stops18h 05mMultiple Airlines

Thu 8/216:25 amFRA - BWI

2 stops17h 15mMultiple Airlines

Deal found 6/30

$678

Sun 8/105:28 pmDCA - FRA

1 stop10h 22mVirgin Atlantic

Tue 8/2611:00 amFRA - DCA

1 stop17h 59mVirgin Atlantic

Deal found 7/1

$679

Fri 10/316:05 pmIAD - FRA

1 stop11h 00mAer Lingus

Fri 11/1410:45 amFRA - IAD

1 stop14h 45mAer Lingus

Deal found 6/30

$679

Fri 11/281:30 pmIAD - FRA

1 stop18h 25mTurkish Airlines

Thu 12/186:25 pmFRA - IAD

1 stop23h 20mTurkish Airlines

Deal found 7/1

$681

Tue 9/912:15 pmDCA - FRA

2 stops20h 25mScandinavian Airlines

Tue 9/308:30 pmFRA - DCA

2 stops31h 49mScandinavian Airlines

Deal found 6/30

$685

Tue 12/211:05 amDCA - FRA

1 stop14h 20mAir Canada

Tue 12/99:45 amFRA - DCA

1 stop11h 46mAir Canada

Deal found 6/30

$693

Best flights from Washington, D.C. to Heidelberg
Discover carefully curated flight deals from Washington, D.C. to Heidelberg that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2025.

Wed 12/37:30 pmBWI - FRA

1 stop10h 35mIcelandair

Sun 12/71:05 pmFRA - BWI

1 stop11h 25mIcelandair

Deal found 6/30

$514

Wed 10/112:08 pmIAD - FRA

2 stops20h 32mScandinavian Airlines

Sun 10/123:25 pmFRA - IAD

1 stop10h 34mScandinavian Airlines

Deal found 7/1

$653

Wed 10/110:20 pmIAD - FRA

2 stops16h 05mMultiple Airlines

Wed 10/159:00 pmFRA - IAD

2 stops29h 50mMultiple Airlines

Deal found 6/30

$671

Sun 8/105:31 pmIAD - FRA

1 stop11h 29mAir Canada

Tue 8/1912:20 pmFRA - IAD

Nonstop8h 55mAir Canada

Deal found 6/30

$673

Sun 8/105:28 pmDCA - FRA

1 stop10h 22mVirgin Atlantic

Tue 8/2611:00 amFRA - DCA

1 stop17h 59mVirgin Atlantic

Deal found 7/1

$679

Fri 10/316:05 pmIAD - FRA

1 stop11h 00mAer Lingus

Fri 11/1410:45 amFRA - IAD

1 stop14h 45mAer Lingus

Deal found 6/30

$679

Fri 11/281:30 pmIAD - FRA

1 stop18h 25mTurkish Airlines

Thu 12/186:25 pmFRA - IAD

1 stop23h 20mTurkish Airlines

Deal found 7/1

$681

Fri 8/225:00 pmIAD - FRA

1 stop23h 20mTAP AIR PORTUGAL

Mon 9/11:30 pmFRA - IAD

1 stop13h 20mTAP AIR PORTUGAL

Deal found 6/30

$687

Wed 12/36:00 pmIAD - FRA

Nonstop7h 40mLufthansa

Wed 12/1012:55 pmFRA - IAD

Nonstop8h 55mLufthansa

Deal found 6/30

$693

Tue 12/25:00 pmDCA - FRA

1 stop10h 10mUnited Airlines

Tue 12/99:45 amFRA - DCA

1 stop11h 46mUnited Airlines

Deal found 6/30

$698

Sun 8/1011:59 amDCA - FRA

1 stop13h 21mAmerican Airlines

Tue 8/199:20 amFRA - DCA

1 stop12h 35mAmerican Airlines

Deal found 6/30

$700

Sun 8/105:23 pmIAD - FRA

1 stop10h 27mDelta

Tue 8/1910:40 amFRA - IAD

1 stop14h 09mDelta

Deal found 6/30

$701

Last-minute flights from Washington, D.C. to Heidelberg
Discover last-minute flight deals from Washington, D.C. to Heidelberg. Data last updated July 1, 2025 and is based on user searches.

Sun 7/612:13 pmIAD - FRA

1 stop14h 27mKLM

Tue 7/2911:50 amFRA - IAD

1 stop14h 01mKLM

Deal found 6/29

$991

Mon 7/73:25 pmIAD - FRA

Nonstop8h 05mLufthansa

Thu 7/243:00 pmFRA - IAD

1 stop11h 00mLufthansa

Deal found 6/30

$779

Mon 7/77:02 amIAD - FRA

1 stop19h 53mVirgin Atlantic

Wed 7/3011:50 amFRA - IAD

1 stop14h 03mVirgin Atlantic

Deal found 6/29

$944

Tue 7/85:50 pmIAD - FRA

1 stop11h 15mMultiple Airlines

Tue 7/298:00 amFRA - IAD

1 stop14h 00mMultiple Airlines

Deal found 7/1

$975

Wed 7/910:05 pmIAD - FRA

2 stops29h 30mScandinavian Airlines

Thu 8/213:20 pmFRA - IAD

1 stop10h 39mScandinavian Airlines

Deal found 7/1

$791

Wed 7/910:20 pmIAD - FRA

1 stop14h 35mTAP AIR PORTUGAL

Thu 8/211:30 pmFRA - IAD

1 stop13h 20mTAP AIR PORTUGAL

Deal found 7/1

$822

Wed 7/98:29 amDCA - FRA

2 stops22h 31mIcelandair

Thu 8/212:00 pmFRA - DCA

2 stops24h 03mIcelandair

Deal found 7/1

$959

Thu 7/1011:45 amDCA - FRA

1 stop11h 30mMultiple Airlines

Wed 7/1611:40 amFRA - DCA

1 stop12h 25mMultiple Airlines

Deal found 7/1

$820

Thu 7/105:20 pmIAD - FRA

1 stop10h 55mAer Lingus

Fri 8/1510:55 amFRA - IAD

1 stop14h 00mAer Lingus

Deal found 6/29

$871

Thu 7/108:30 pmIAD - FRA

1 stop10h 30mIcelandair

Fri 8/155:10 pmFRA - IAD

1 stop11h 00mIcelandair

Deal found 6/30

$907

Thu 7/101:30 pmIAD - FRA

1 stop14h 30mTurkish Airlines

Wed 7/166:55 pmFRA - IAD

1 stop22h 50mTurkish Airlines

Deal found 7/1

$971

Thu 7/104:30 pmIAD - FRA

1 stop18h 55mITA Airways

Wed 7/306:15 pmFRA - IAD

1 stop26h 25mITA Airways

Deal found 6/29

$976

One-way flights from Washington, D.C. to Heidelberg
Search for one-way flight options from Washington, D.C. to Heidelberg. Find affordable one-way fares based on user searches. Data last updated July 1, 2025.

Tue 7/227:10 amBWI - FRA

2 stops33h 10mMultiple Airlines

Deal found 6/29

$242

Tue 10/78:30 pmIAD - FRA

1 stop10h 30mIcelandair

Deal found 6/29

$270

Thu 9/48:30 pmBWI - FRA

1 stop10h 30mIcelandair

Deal found 6/30

$284

Tue 7/810:20 pmIAD - FRA

2 stops37h 30mMultiple Airlines

Deal found 6/30

$285

Tue 8/125:00 pmIAD - FRA

1 stop19h 50mTAP AIR PORTUGAL

Deal found 6/29

$297

Thu 8/711:10 amDCA - FRA

2 stops19h 50mMultiple Airlines

Deal found 7/1

$333

Wed 8/206:30 amDCA - FRA

1 stop22h 10mSingapore Airlines

Deal found 7/1

$379

Tue 11/1111:00 amDCA - FRA

2 stops26h 45mScandinavian Airlines

Deal found 7/1

$399

Tue 9/163:15 pmDCA - FRA

2 stops18h 50mIcelandair

Deal found 6/30

$450

Tue 7/229:40 amDCA - FRA

1 stop15h 30mAir Canada

Deal found 6/29

$464

Wed 7/3012:00 pmDCA - FRA

1 stop15h 55mUnited Airlines

Deal found 6/30

$469

Sat 7/266:20 pmDCA - FRA

1 stop32h 35mDelta

Deal found 7/1

$482

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreFrankfurt am Main

BWI - FRA

BWIFRA

Baltimore/Washington

Wed 12/3

7:30 pm-12:05 pm

1 stop10h 35m

Frankfurt am Main

Sun 12/7

1:05 pm-6:30 pm

1 stop11h 25m

$514

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Fri 9/5

8:30 pm-1:00 pm

1 stop10h 30m

Frankfurt am Main

Sun 9/7

5:10 pm-10:10 pm

1 stop11h 00m

$646

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Tue 9/9

12:13 pm-2:40 pm

2 stops20h 27m

Frankfurt am Main

Wed 9/17

8:30 pm-7:59 pm

1 stop29h 29m

$653

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Sun 8/10

5:31 pm-11:00 am

1 stop11h 29m

Frankfurt am Main

Tue 8/19

12:20 pm-3:15 pm

Nonstop8h 55m

$673

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Sun 8/10

8:45 pm-1:55 pm

1 stop11h 10m

Frankfurt am Main

Tue 8/19

10:30 am-1:30 pm

Nonstop9h 00m

$675

BaltimoreFrankfurt am Main

BWI - FRA

BWIFRA

Baltimore/Washington

Thu 8/14

6:50 pm-6:55 pm

2 stops18h 05m

Frankfurt am Main

Thu 8/21

6:25 am-5:40 pm

2 stops17h 15m

$678

Washington, D.C.Frankfurt am Main

DCA - FRA

DCAFRA

Washington, D.C. Reagan-National

Sun 8/10

5:28 pm-9:50 am

1 stop10h 22m

Frankfurt am Main

Tue 8/26

11:00 am-10:59 pm

1 stop17h 59m

$679

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Wed 9/10

6:10 pm-8:00 am

Nonstop7h 50m

Frankfurt am Main

Wed 9/17

1:10 pm-3:50 pm

Nonstop8h 40m

$681

Washington, D.C.Frankfurt am Main

DCA - FRA

DCAFRA

Washington, D.C. Reagan-National

Tue 9/9

12:15 pm-2:40 pm

2 stops20h 25m

Frankfurt am Main

Tue 9/30

8:30 pm-10:19 pm

2 stops31h 49m

$685

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Fri 8/22

5:00 pm-10:20 pm

1 stop23h 20m

Frankfurt am Main

Mon 9/1

1:30 pm-8:50 pm

1 stop13h 20m

$687

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 41 results

...

Best time to book a flight from Washington, D.C. to Heidelberg

Have a flexible travel schedule? Discover the best time to fly to Heidelberg from Washington, D.C. 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. to Heidelberg

How far ahead should I book a flight from Washington, D.C. to Heidelberg?

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Heidelberg. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Washington, D.C. to Heidelberg?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Heidelberg (average of $729). Flying from Washington, D.C. to Heidelberg in June is currently the most expensive (average of $1,088). 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 WAS to HE1?

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

What is the cheapest day to fly from Washington, D.C. to Heidelberg?

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

Weekly flight availability from Washington, D.C. to Heidelberg

The most flights from WAS to HE1 are scheduled on a Monday (14 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (11 on average).

How much does it cost to fly round-trip from Washington, D.C. to Heidelberg?

Reviews of airlines servicing Heidelberg

Peruse reviews from past customers who have flown with Singapore Airlines, Delta, and Air France from Washington, D.C. to Heidelberg to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Singapore Airlines

8.1

Very good

1,320 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Singapore Airlines

8.1

Very good

1,320 reviews

Singapore Airlines

8.1

Very good

1,320 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Delta

8.0

Very good

7,973 reviews

Singapore Airlines

8.1

Very good

1,320 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Air France

7.5

Good

1,472 reviews

Singapore Airlines

8.1

Very good

1,320 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

United Airlines

7.4

Good

8,858 reviews

Singapore Airlines

8.1

Very good

1,320 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Virgin Atlantic

7.4

Good

654 reviews

Singapore Airlines

8.1

Very good

1,320 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Related info for your journey

What are the cheapest airlines to fly from Washington, D.C. to Heidelberg one-way?
One-way options have recently been found by users for as low as $270 on Icelandair. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $297 and Singapore Airlines from $379 one-way.
What are the most popular routes from Washington, D.C. to Heidelberg?
When deciding which route to take from Washington, D.C. to Heidelberg consider Washington, D.C. Dulles Intl - Frankfurt am Main, Baltimore/Washington - Frankfurt am Main or Washington, D.C. Reagan-National - Frankfurt am Main as they are the most popular.
What are the most reliable airlines from Washington, D.C. to Heidelberg?
Before booking your flight to Heidelberg from Washington, D.C., check out the most reliable airlines to get you to your destination on time: Air Canada (58%), United Airlines (58%), Lufthansa( 58%).
What are the cheapest flights from Washington, D.C. to Heidelberg?
The cheapest flight price from Washington, D.C. to Heidelberg is $386. On average you can expect to pay $2,024. The most popular route, (Washington, D.C. Dulles Intl - Frankfurt am Main), can usually be booked for $508.
Can I find deals for flights from Washington, D.C. to Heidelberg that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Heidelberg flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Heidelberg?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Heidelberg.
Can I find deals for business class flights from Washington, D.C. to Heidelberg?
Yes. Cheapflights offers flight deals from Washington, D.C. to Heidelberg 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. to Heidelberg?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Heidelberg (average of $729). Flying from Washington, D.C. to Heidelberg in June is currently the most expensive (average of $1,088). 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 Washington, D.C. to Heidelberg

Dulles Intl to Frankfurt flights

Dulles Intl to Munich flights

Reagan-National to Frankfurt flights

Reagan-National to Munich flights

Dulles Intl to Stuttgart flights

Reagan-National to Stuttgart flights

Dulles Intl to Friedrichshafen flights

Dulles Intl to Karlsruhe flights

Top 10 airlines flying from Washington, D.C. to Heidelberg

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$254	Average$971	FlexibilityNo cancel fee	On-timeN/A
Icelandair	Cheapest$471	Average$782	FlexibilityNo cancel fee	On-time76%
Condor	Cheapest$515	Average$683	FlexibilityNo cancel fee	On-time76%
Aer Lingus	Cheapest$530	Average$815	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$531	Average$682	FlexibilityNo cancel fee	On-time77%
Air France	Cheapest$551	Average$1,781	FlexibilityNo cancel fee	On-time77%
KLM	Cheapest$552	Average$854	FlexibilityNo cancel fee	On-time75%
TAP AIR PORTUGAL	Cheapest$557	Average$911	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$564	Average$891	FlexibilityNo cancel fee	On-time70%
American Airlines	Cheapest$617	Average$932	FlexibilityNo cancel fee	On-time71%

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$242+ Cheap flights from Washington, D.C. (WAS) to Heidelberg, Germany

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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Heidelberg with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. to Heidelberg are usually found in September or January, booked 78 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Washington, D.C. to Heidelberg

Keep the following information in mind while searching for Washington, D.C. to Heidelberg flight deals. Data was last updated July 1, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington, D.C. to Heidelberg

Cheapest flights from Washington, D.C. to HeidelbergExplore the most affordable flight options available from Washington, D.C. to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

Explore the most affordable flight options available from Washington, D.C. to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Washington, D.C. to Heidelberg

Have a flexible travel schedule? Discover the best time to fly to Heidelberg from Washington, D.C. with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Heidelberg

How far ahead should I book a flight from Washington, D.C. to Heidelberg?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Heidelberg. Price data was last updated on June 27, 2025.

What is the cheapest month to book a flight from Washington, D.C. to Heidelberg?

What is the cheapest time of day to fly from WAS to HE1?

Find hourly flight availability from Washington, D.C. to Heidelberg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 1, 2025.

What is the cheapest day to fly from Washington, D.C. to Heidelberg?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Heidelberg. Price data was last updated on December 16, 2024.

Weekly flight availability from Washington, D.C. to Heidelberg

How much does it cost to fly round-trip from Washington, D.C. to Heidelberg?

Reviews of airlines servicing Heidelberg

Peruse reviews from past customers who have flown with Singapore Airlines, Delta, and Air France from Washington, D.C. to Heidelberg to help guide your decision. You can also see how each airline stacks up 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 Washington, D.C. to Heidelberg. 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. to Heidelberg one-way?

What are the most popular routes from Washington, D.C. to Heidelberg?

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What are the cheapest flights from Washington, D.C. to Heidelberg?

Can I find deals for flights from Washington, D.C. to Heidelberg that include hotel bookings?

How can I find direct flights from Washington, D.C. to Heidelberg?

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What is the cheapest month to book a flight from Washington, D.C. to Heidelberg?

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Alternative routes for Washington, D.C. to Heidelberg

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Cheapest flights from Washington, D.C. to Heidelberg
Explore the most affordable flight options available from Washington, D.C. to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.