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Heidelberg

$277+ Cheap flights from Denver (DEN) 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — FRA
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Heidelberg are usually found in October or August, booked 63 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Denver to Heidelberg

Keep the following information in mind while searching for Denver to Heidelberg flight deals. Data was last updated October 20, 2025.

Round-trip from

$688
(Condor)

One-way from

$277
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$825
From Denver Intl to Heidelberg
Search Deals
One-way flight from Denver Intl to Heidelberg
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($164 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Denver to Heidelberg

Cheapest flights from Denver to Heidelberg
Explore the most affordable flight options available from Denver to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This Condor deal was found by Cheapflights users on 10/20. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:14 amDEN - FRA
1 stop22h 36mMultiple Airlines
Thu 12/411:15 amFRA - DEN
1 stop18h 52mMultiple Airlines
Deal found 10/20$688
This Mytrip deal was found by Cheapflights users on 10/20. 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.
Thu 12/43:40 pmDEN - FRA
2 stops18h 20mMultiple Airlines
Thu 12/119:10 amFRA - DEN
2 stops16h 55mMultiple Airlines
Deal found 10/20$691
This FlightHub deal was found by Cheapflights users on 10/20. 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.
Tue 12/27:20 pmDEN - FRA
1 stop18h 55mTurkish Airlines
Wed 12/102:50 pmFRA - DEN
1 stop34h 45mTurkish Airlines
Deal found 10/20$700
This lastminute.com deal was found by Cheapflights users on 10/20. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2412:38 pmDEN - FRA
2 stops23h 07mScandinavian Airlines
Thu 12/48:30 pmFRA - DEN
2 stops35h 54mScandinavian Airlines
Deal found 10/20$707
This FlightHub deal was found by Cheapflights users on 10/20. 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.
Tue 11/187:20 pmDEN - FRA
1 stop34h 35mTurkish Airlines
Tue 11/257:05 amFRA - DEN
1 stop18h 30mTurkish Airlines
Deal found 10/20$712
This FlightHub deal was found by Cheapflights users on 10/20. 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.
Tue 12/212:40 pmDEN - FRA
2 stops23h 05mScandinavian Airlines
Tue 12/98:30 pmFRA - DEN
2 stops35h 54mScandinavian Airlines
Deal found 10/20$715
This FlightHub deal was found by Cheapflights users on 10/20. 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.
Tue 12/27:20 pmDEN - FRA
1 stop34h 35mTurkish Airlines
Mon 12/82:50 pmFRA - DEN
1 stop34h 45mTurkish Airlines
Deal found 10/20$718
This Kiwi.com deal was found by Cheapflights users on 10/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/39:42 amDEN - FRA
2 stops38h 58mMultiple Airlines
Wed 12/108:35 amFRA - DEN
1 stop18h 34mMultiple Airlines
Deal found 10/19$729
This Orbitz deal was found by Cheapflights users on 10/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/238:10 amDEN - FRA
1 stop20h 00mMultiple Airlines
Sat 10/252:05 pmFRA - DEN
1 stop15h 41mMultiple Airlines
Deal found 10/19$739
This FlightHub deal was found by Cheapflights users on 10/20. 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.
Wed 12/312:40 pmDEN - FRA
2 stops23h 05mScandinavian Airlines
Wed 12/103:15 pmFRA - DEN
2 stops41h 09mScandinavian Airlines
Deal found 10/20$745
This Scandinavian Airlines deal was found by Cheapflights users on 10/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2412:38 pmDEN - FRA
2 stops23h 07mScandinavian Airlines
Tue 12/28:30 pmFRA - DEN
2 stops35h 15mScandinavian Airlines
Deal found 10/20$749
This FlightHub deal was found by Cheapflights users on 10/19. 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.
Tue 10/288:20 pmDEN - FRA
1 stop30h 10mTurkish Airlines
Mon 11/102:50 pmFRA - DEN
1 stop34h 45mTurkish Airlines
Deal found 10/19$752

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 October 20, 2025.
Use the filters below to find and compare flights from Denver to Heidelberg that are best for you.

Fly from

Denver

Fly to

Heidelberg

Route

Depart

Return

Price

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

Mon 11/24

6:14 am-12:50 pm

1 stop22h 36m

Frankfurt am Main

Thu 12/4

11:15 am-10:07 pm

1 stop18h 52m

$688

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

Wed 3/11

6:30 am-6:40 pm

3 stops29h 10m

Frankfurt am Main

Wed 3/25

10:30 am-10:49 pm

2 stops19h 19m

$788

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

Wed 1/21

6:30 am-5:55 pm

3 stops27h 25m

Frankfurt am Main

Wed 2/4

10:30 am-10:55 pm

2 stops20h 25m

$789

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

Wed 2/18

6:30 am-5:55 pm

3 stops27h 25m

Frankfurt am Main

Wed 3/11

10:30 am-10:55 pm

2 stops19h 25m

$789

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

Tue 2/17

6:30 am-7:45 pm

3 stops29h 15m

Frankfurt am Main

Tue 3/3

10:30 am-10:55 pm

2 stops20h 25m

$792

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

Sun 1/18

6:30 am-9:50 am

2 stops19h 20m

Frankfurt am Main

Sun 2/1

7:05 am-10:55 pm

3 stops23h 50m

$806

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

Sun 2/15

6:30 am-9:50 am

2 stops19h 20m

Frankfurt am Main

Sun 3/1

6:55 am-10:55 pm

3 stops24h 00m

$819

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

Mon 2/2

6:30 am-9:50 am

3 stops19h 20m

Frankfurt am Main

Tue 2/10

6:55 am-10:55 pm

3 stops24h 00m

$823

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

Mon 2/2

11:35 am-9:50 am

1 stop14h 15m

Frankfurt am Main

Tue 2/10

8:35 am-10:25 pm

1 stop21h 50m

$827

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

Sun 1/18

11:20 pm-9:50 am

1 stop26h 30m

Frankfurt am Main

Sun 2/1

8:35 am-10:45 am

1 stop34h 10m

$850

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/18

Showing 1-10 of 17 results
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Best time to book a flight from Denver to Heidelberg

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

How far ahead should I book a flight from Denver to Heidelberg?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Heidelberg. Price data was last updated on October 17, 2025.

Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver 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 Denver to Heidelberg?

Currently, October is the cheapest month in which you can book a flight from Denver to Heidelberg (average of $572). Flying from Denver to Heidelberg in June is currently the most expensive (average of $819). 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 DEN to HE1?

Find hourly flight availability from Denver 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 October 20, 2025.

It’s optimal to fly from Denver to Heidelberg in the evening. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight at noon.

Weekly flight availability from Denver to Heidelberg

Explore weekly flight availability from Denver 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 October 20, 2025.

The most flights from DEN to HE1 are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 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 October 20, 2025.
Read through reviews of airlines operating flights from Denver to Heidelberg, such as United Airlines, Turkish Airlines, and Icelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,991 reviews
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Turkish Airlines
7.3
Good
4,022 reviews
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Icelandair
7.0
Good
561 reviews
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Lufthansa
6.8
Okay
7,508 reviews
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
British Airways
6.7
Okay
7,461 reviews
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Denver to Heidelberg. 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 Denver to Heidelberg?

    Most people fly from Denver Intl (DEN) if they book a flight from Denver to Heidelberg. On average, Denver Intl has 5 outbound flights to Heidelberg per day from 9 airlines. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

  • How long is the flight from Denver to Heidelberg?

    For as low as $788, Scandinavian Airlines can have you in Heidelberg from Denver in 29h 10m. Airlines will cover a distance of 5022 mi.

  • What are the most reliable airlines from Denver 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 Denver to Heidelberg on time: Air Canada (90%), United Airlines (85%), Lufthansa (85%).

  • What are the cheapest flights from Denver to Heidelberg?

    Looking at all options, your cheapest flight can be booked for $484. While the most popular route (Denver Intl - Frankfurt am Main) can be booked for $545 on average, our data indicates $1,185 when flying from Denver to Heidelberg.

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

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

  • How can I find direct flights from Denver to Heidelberg?

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

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

    Yes. Cheapflights offers flight deals from Denver 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 Denver to Heidelberg?

    Currently, October is the cheapest month in which you can book a flight from Denver to Heidelberg (average of $572). Flying from Denver to Heidelberg in June is currently the most expensive (average of $819). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 9 airlines flying from Denver to Heidelberg

Discover the top 9 airlines that operate flights from Denver 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$494Average$902FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$558Average$849FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$595Average$715FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$617Average$817FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$624Average$962FlexibilityNo cancel feeOn-time71%
DeltaCheapest$652Average$774FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$695Average$1,378FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$731Average$1,067FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$763Average$1,569FlexibilityNo cancel feeOn-time69%

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