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Heidelberg

$301+ Cheap flights from Dulles Intl (IAD) 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — FRA
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Heidelberg are usually found in February or September, booked 15 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Dulles Intl to Heidelberg

Cheapest flights from Dulles Intl to Heidelberg
Explore the most affordable flight options available from Dulles Intl to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This KLM deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:50 pmIAD - FRA
1 stop10h 25mMultiple Airlines
Fri 1/99:50 amFRA - IAD
1 stop16h 47mMultiple Airlines
Deal found 12/23$668
This Delta deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:32 pmIAD - FRA
1 stop13h 18mDelta
Fri 1/99:50 amFRA - IAD
1 stop19h 47mDelta
Deal found 12/23$669
This Air France deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:50 pmIAD - FRA
1 stop10h 25mAir France
Thu 1/88:00 pmFRA - IAD
1 stop26h 35mAir France
Deal found 12/22$771
This FlightHub deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:15 pmIAD - FRA
1 stop34h 40mTurkish Airlines
Fri 1/92:50 pmFRA - IAD
1 stop34h 30mTurkish Airlines
Deal found 12/21$798
This Gotogate deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:30 pmIAD - FRA
1 stop12h 25mTAP AIR PORTUGAL
Sun 1/115:45 pmFRA - IAD
1 stop27h 30mTAP AIR PORTUGAL
Deal found 12/21$935
This CrystalTravel deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:40 pmIAD - FRA
1 stop10h 25mIcelandair
Fri 1/91:05 pmFRA - IAD
1 stop11h 25mIcelandair
Deal found 12/21$958
This Gotogate deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:30 pmIAD - FRA
1 stop13h 00mTAP AIR PORTUGAL
Sun 1/115:45 pmFRA - IAD
1 stop27h 30mTAP AIR PORTUGAL
Deal found 12/21$992
This Cheapflightsfares deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:40 pmIAD - FRA
1 stop10h 25mIcelandair
Fri 1/91:05 pmFRA - IAD
1 stop11h 25mIcelandair
Deal found 12/21$1,000
This SmartFares deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:20 pmIAD - FRA
1 stop27h 50mLufthansa
Wed 12/3112:55 pmFRA - IAD
Nonstop8h 55mLufthansa
Deal found 12/22$1,002
This Mytrip deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:40 pmIAD - FRA
2 stops16h 20mMultiple Airlines
Sun 1/1110:15 pmFRA - IAD
3 stops26h 15mMultiple Airlines
Deal found 12/21$1,008

Find flight deals from Dulles Intl to Heidelberg

Keep the following information in mind while searching for Dulles Intl to Heidelberg flight deals. Data was last updated December 23, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$628
(Delta)

One-way from

$301
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$1,156
Provider with most accurate pricing for Washington, D.C. (WAS)-Frankfurt am Main flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Frankfurt am Main flights.
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From Washington, D.C. Dulles Intl to Heidelberg
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Heidelberg
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
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 December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Heidelberg that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Heidelberg that are best for you.

Fly from

Dulles Intl

Fly to

Heidelberg

Route

Depart

Return

Price

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Mon 2/2

8:30 pm-2:30 pm

1 stop12h 00m

Frankfurt am Main

Fri 2/6

10:30 am-7:09 pm

2 stops14h 39m

$641

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Fri 3/13

7:59 pm-1:40 pm

2 stops12h 41m

Frankfurt am Main

Tue 3/24

6:55 am-8:54 pm

2 stops18h 59m

$644

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Fri 1/9

12:29 pm-7:50 am

1 stop13h 21m

Frankfurt am Main

Tue 1/13

10:15 am-4:05 pm

1 stop11h 50m

$649

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Thu 3/12

7:59 pm-4:45 pm

2 stops15h 46m

Frankfurt am Main

Mon 3/23

6:55 am-5:05 pm

1 stop15h 10m

$652

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Sat 2/28

5:13 pm-1:40 pm

2 stops14h 27m

Frankfurt am Main

Sat 3/21

10:15 am-5:05 pm

1 stop11h 50m

$658

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Fri 1/16

12:09 pm-8:40 am

1 stop14h 31m

Frankfurt am Main

Mon 1/26

6:55 am-4:05 pm

1 stop15h 10m

$699

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Mon 5/4

8:20 pm-7:45 pm

1 stop17h 25m

Frankfurt am Main

Fri 5/8

7:00 am-7:16 pm

2 stops18h 16m

$706

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Fri 1/16

3:00 pm-8:40 am

1 stop11h 40m

Frankfurt am Main

Mon 1/26

10:15 am-8:45 pm

2 stops16h 30m

$709

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Mon 2/9

12:23 pm-11:40 am

2 stops17h 17m

Frankfurt am Main

Tue 2/17

8:30 pm-7:09 pm

2 stops28h 39m

$726

Washington, D.C.Frankfurt am Main

IAD - FRA

IADFRA

Washington, D.C. Dulles Intl

Fri 5/8

12:30 pm-11:25 am

2 stops16h 55m

Frankfurt am Main

Mon 5/18

10:15 am-3:35 pm

1 stop11h 20m

$782

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 19 results
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Best time to book a flight from Dulles Intl to Heidelberg

Have a flexible travel schedule? Discover the best time to fly to Heidelberg 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 Heidelberg

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Heidelberg. Price data was last updated on December 19, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Heidelberg is 15 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Heidelberg (average of $472). Flying from Washington, D.C. Dulles Intl Airport to Heidelberg in July is currently the most expensive (average of $652). 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 HE1?

Find hourly flight availability from Dulles Intl 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 December 23, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 16% on flights from Washington, D.C. Dulles Intl Airport to Heidelberg by exploring options for tickets in the evening.

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

Explore weekly flight availability from Dulles Intl to Heidelberg. 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 December 23, 2025.

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

Reviews of airlines servicing Heidelberg

Get insights into the airlines that provide service to Heidelberg. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heidelberg. Reviews last updated December 23, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Heidelberg, such as Scandinavian Airlines, United Airlines, and Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,620 reviews

Entertainment

6.7

Overall

7.4

Boarding

7.6

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,620 reviews
Scandinavian Airlines
7.4
Good
1,620 reviews

Entertainment

6.7

Overall

7.4

Boarding

7.6

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
United Airlines
7.4
Good
9,106 reviews
Scandinavian Airlines
7.4
Good
1,620 reviews

Entertainment

6.7

Overall

7.4

Boarding

7.6

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Aer Lingus
7.2
Good
1,412 reviews
Scandinavian Airlines
7.4
Good
1,620 reviews

Entertainment

6.7

Overall

7.4

Boarding

7.6

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Icelandair
7.0
Good
592 reviews
Scandinavian Airlines
7.4
Good
1,620 reviews

Entertainment

6.7

Overall

7.4

Boarding

7.6

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Lufthansa
6.8
Okay
7,649 reviews
Scandinavian Airlines
7.4
Good
1,620 reviews

Entertainment

6.7

Overall

7.4

Boarding

7.6

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Heidelberg. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Heidelberg?

    Airlines like Scandinavian Airlines, Delta, and KLM fly from Washington, D.C. Dulles Intl Airport to Heidelberg in about 12h. The time it takes to get you to your destination can typically vary by up to 1h 21m. The distance between Washington, D.C. Dulles Intl Airport and Heidelberg is about 4066 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $188. However, be on the lookout for offers from Scandinavian Airlines and TAP AIR PORTUGAL, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Heidelberg for a low price.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Heidelberg on time: Thai Airways (70%), Air India (70%), Air Canada (67%).

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

    On average you can expect to pay $2,722 for a flight from Washington, D.C. Dulles Intl Airport to Heidelberg. The cheapest flight overall is $403 while the most popular route, (Washington, D.C. Dulles Intl - Frankfurt am Main) is currently priced at $529.

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

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

  • How can I find direct flights from Dulles Intl to Heidelberg?

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Heidelberg?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Heidelberg (average of $472). Flying from Washington, D.C. Dulles Intl Airport to Heidelberg in July is currently the most expensive (average of $652). 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

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Top 10 airlines flying from Dulles Intl to Heidelberg

Discover the top 10 airlines that operate flights from Dulles Intl to Heidelberg. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$254Average$976FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$436Average$781FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$482Average$719FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$510Average$761FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$531Average$647FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$535Average$847FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$556Average$911FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$579Average$779FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$602Average$924FlexibilityNo cancel feeOn-time76%
SWISSCheapest$635Average$861FlexibilityNo cancel feeOn-time79%

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