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

The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as $246. However, be on the lookout for offers from Icelandair and Scandinavian Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Heidelberg for a low price.

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

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

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 cheapest flights from Washington, D.C. Dulles Intl Airport to Heidelberg?

On average you can expect to pay $2,236 for a flight from Washington, D.C. Dulles Intl Airport to Heidelberg. The cheapest flight overall is $440 while the most popular route, (Washington, D.C. Dulles Intl - Frankfurt am Main) is currently priced at $645.

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: Air Canada (65%), United Airlines (65%), Lufthansa (65%).

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

The most popular airlines flying from Washington, D.C. Dulles Intl Airport to Heidelberg are United Airlines, Lufthansa and Icelandair. Something to consider prior to booking your flight.

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.

Find Cheap Flights from Washington, D.C. Dulles Intl Airport to Heidelberg

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Heidelberg are usually found in February or January, booked 13 days in advance, depart on a Wednesday or Sunday and return on a Monday

Find flight deals from Dulles Intl to Heidelberg

Popular in	July
Cheapest in	February
Average price	$1,029

Highest demand for flights based on searches. 9% potential increase in price ($115 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($18 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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

Prices

Airlines

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

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

Reviews of airlines servicing Heidelberg

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Heidelberg, such as Scandinavian Airlines,United Airlines, andTAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Scandinavian Airlines

7.4

Good

2,007 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Scandinavian Airlines

7.4

Good

2,007 reviews

Scandinavian Airlines

7.4

Good

2,007 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

United Airlines

7.4

Good

10,289 reviews

Scandinavian Airlines

7.4

Good

2,007 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

TAP AIR PORTUGAL

7.2

Good

2,383 reviews

Scandinavian Airlines

7.4

Good

2,007 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Icelandair

6.9

Okay

757 reviews

Scandinavian Airlines

7.4

Good

2,007 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Lufthansa

6.8

Okay

8,259 reviews

Scandinavian Airlines

7.4

Good

2,007 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Related info for your journey

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Heidelberg one-way?
The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as $246. However, be on the lookout for offers from Icelandair and Scandinavian Airlines, 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: Air Canada (65%), United Airlines (65%), Lufthansa (65%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Heidelberg?
On average you can expect to pay $2,236 for a flight from Washington, D.C. Dulles Intl Airport to Heidelberg. The cheapest flight overall is $440 while the most popular route, (Washington, D.C. Dulles Intl - Frankfurt am Main) is currently priced at $645.
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.

See more FAQs

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Top 9 airlines flying from Dulles Intl to Heidelberg

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest$450	Average$734	FlexibilityNo cancel fee	On-timeN/A
Icelandair	Cheapest$483	Average$740	FlexibilityNo cancel fee	On-time76%
Scandinavian Airlines	Cheapest$562	Average$780	FlexibilityNo cancel fee	On-time77%
Lufthansa	Cheapest$631	Average$985	FlexibilityNo cancel fee	On-time76%
Turkish Airlines	Cheapest$640	Average$808	FlexibilityNo cancel fee	On-time77%
Aer Lingus	Cheapest$685	Average$910	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$703	Average$1,107	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$736	Average$1,187	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$882	Average$1,168	FlexibilityNo cancel fee	On-timeN/A

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Cheap flights from Dulles Intl (IAD) to Heidelberg, Germany

Find cheap flights from Dulles Intl to Heidelberg with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Dulles Intl to Heidelberg

Popular in

Cheapest in

Average price

Cheapflights Insights

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

When flying from Washington, D.C. Dulles Intl Airport to Heidelberg, 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 Heidelberg

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

Reviews of airlines servicing Heidelberg

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Heidelberg, such as Scandinavian Airlines,United Airlines, andTAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

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

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

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 Heidelberg

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Complete your trip

Complete your trip to Heidelberg by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Dulles Intl to Heidelberg by cabin class

Find flights from Dulles Intl to Heidelberg, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Dulles Intl and Heidelberg flights

Browse other Dulles Intl and Heidelberg flight options. Last updated on October 5, 2026.

Other flights from Dulles Intl

Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on October 5, 2026.

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Top 9 airlines flying from Dulles Intl to Heidelberg

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