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Heidelberg

$284+ 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — FRA
janv. 3 — janv. 101
sam. 1/3
sam. 1/10
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Heidelberg are usually found in August or October, booked 63 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap 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 décembre 4, 2025.

This Expedia deal was found by Cheapflights users on 12/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 12/612:40 pmDEN - FRA
1 stop16h 10mMultiple Airlines
lun. 12/811:15 amFRA - DEN
1 stop18h 52mMultiple Airlines
Deal found 12/2$820
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
jeu. 12/47:20 pmDEN - FRA
1 stop18h 55mTurkish Airlines
mer. 12/102:50 pmFRA - DEN
1 stop34h 45mTurkish Airlines
Deal found 12/2$885
This oojo deal was found by Cheapflights users on 12/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 12/67:20 pmDEN - FRA
1 stop37h 40mTurkish Airlines
sam. 12/277:05 amFRA - DEN
1 stop18h 30mTurkish Airlines
Deal found 12/2$910
This FlightHub deal was found by Cheapflights users on 12/2. 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.
mar. 12/27:20 pmDEN - FRA
1 stop37h 40mTurkish Airlines
jeu. 12/187:05 amFRA - DEN
1 stop18h 30mTurkish Airlines
Deal found 12/2$919
This Justfly.com deal was found by Cheapflights users on 12/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 12/67:20 pmDEN - FRA
1 stop30h 10mTurkish Airlines
mar. 12/97:05 amFRA - DEN
1 stop18h 30mTurkish Airlines
Deal found 12/2$948
This oojo deal was found by Cheapflights users on 12/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/47:20 pmDEN - FRA
1 stop30h 10mTurkish Airlines
mer. 12/1710:55 amFRA - DEN
1 stop38h 40mTurkish Airlines
Deal found 12/4$955
This Gotogate deal was found by Cheapflights users on 12/2. 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.
mar. 12/27:20 pmDEN - FRA
1 stop18h 55mTurkish Airlines
mar. 12/167:05 amFRA - DEN
1 stop18h 30mTurkish Airlines
Deal found 12/2$969
This KAYAK deal was found by Cheapflights users on 12/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 12/611:59 pmDEN - FRA
2 stops28h 06mIcelandair
ven. 12/121:05 pmFRA - DEN
2 stops17h 54mIcelandair
Deal found 12/2$988
This Icelandair deal was found by Cheapflights users on 12/1. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 12/711:50 amDEN - FRA
2 stops16h 15mMultiple Airlines
ven. 12/121:05 pmFRA - DEN
2 stops17h 54mMultiple Airlines
Deal found 12/1$1,003
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
jeu. 12/47:20 pmDEN - FRA
1 stop34h 35mTurkish Airlines
mar. 12/97:05 amFRA - DEN
1 stop18h 30mTurkish Airlines
Deal found 12/2$1,004
This KAYAK deal was found by Cheapflights users on 12/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 12/67:20 pmDEN - FRA
1 stop18h 55mTurkish Airlines
ven. 12/127:05 amFRA - DEN
1 stop18h 30mTurkish Airlines
Deal found 12/2$1,007

Find flight deals from Denver to Heidelberg

Keep the following information in mind while searching for Denver to Heidelberg flight deals. Data was last updated décembre 4, 2025.

Round-trip from

$740
(FlightHub)

One-way from

$284
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$1,382
From Denver Intl to Heidelberg
Search Deals
One-way flight from Denver Intl to Heidelberg
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 décembre 4, 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

dim. 4/19

1:35 pm-2:35 pm

2 stops17h 00m

Frankfurt am Main

dim. 4/26

3:20 pm-10:49 pm

2 stops39h 29m

$747

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

jeu. 2/26

7:20 pm-10:15 pm

1 stop18h 55m

Frankfurt am Main

lun. 3/2

6:25 pm-5:35 pm

1 stop31h 10m

$845

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

dim. 1/25

7:00 am-12:05 pm

2 stops21h 05m

Frankfurt am Main

mar. 2/10

1:05 pm-11:35 pm

2 stops18h 30m

$896

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

sam. 3/7

10:59 pm-9:50 am

1 stop26h 51m

Frankfurt am Main

dim. 3/15

8:35 am-1:44 pm

1 stop36h 09m

$899

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

dim. 5/24

8:25 pm-11:55 am

1 stop31h 30m

Frankfurt am Main

dim. 5/31

6:50 am-6:20 pm

1 stop19h 30m

$899

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

lun. 3/23

1:15 pm-7:45 pm

2 stops23h 30m

Frankfurt am Main

jeu. 4/2

7:00 am-10:39 pm

3 stops23h 39m

$904

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

sam. 1/31

6:41 am-9:50 am

2 stops19h 09m

Frankfurt am Main

mar. 3/31

7:00 am-12:09 am

3 stops25h 09m

$935

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

mer. 4/15

6:30 am-2:35 pm

3 stops24h 05m

Frankfurt am Main

lun. 4/27

7:00 am-10:49 pm

3 stops23h 49m

$942

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

dim. 1/25

6:40 am-5:55 pm

3 stops27h 15m

Frankfurt am Main

mar. 2/10

6:55 am-10:46 pm

3 stops23h 51m

$945

DenverFrankfurt am Main

DEN - FRA

DENFRA

Denver Intl

dim. 1/25

5:35 pm-4:05 pm

1 stop14h 30m

Frankfurt am Main

mar. 2/10

11:10 am-1:40 pm

Nonstop10h 30m

$980

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 22 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 November 28, 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 $566). Flying from Denver to Heidelberg in June is currently the most expensive (average of $807). 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 décembre 4, 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 décembre 4, 2025.

The most flights from DEN to HE1 are scheduled on a Monday (5 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost to fly round-trip from Denver to Heidelberg?

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 décembre 4, 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
9,066 reviews

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,066 reviews
United Airlines
7.4
Good
9,066 reviews

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Turkish Airlines
7.3
Good
4,077 reviews
United Airlines
7.4
Good
9,066 reviews

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Icelandair
7.0
Good
584 reviews
United Airlines
7.4
Good
9,066 reviews

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Lufthansa
6.8
Okay
7,612 reviews
United Airlines
7.4
Good
9,066 reviews

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
British Airways
6.7
Okay
7,562 reviews
United Airlines
7.4
Good
9,066 reviews

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 4 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 $747, Scandinavian Airlines can have you in Heidelberg from Denver in 17h. Airlines will cover a distance of 5022 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Denver to Heidelberg one-way?

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $273. Users have also found prices from $436 and $441 on Turkish Airlines and WestJet, respectively.

  • 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 (95%), United Airlines (88%), Lufthansa (88%).

  • What are the cheapest flights from Denver to Heidelberg?

    Looking at all options, your cheapest flight can be booked for $419. While the most popular route (Denver Intl - Frankfurt am Main) can be booked for $551 on average, our data indicates $1,517 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 $566). Flying from Denver to Heidelberg in June is currently the most expensive (average of $807). 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

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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 décembre 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$494Average$870FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$544Average$840FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$595Average$715FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$617Average$841FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$624Average$962FlexibilityNo cancel feeOn-time71%
DeltaCheapest$652Average$774FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$695Average$1,306FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$731Average$1,067FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$748Average$1,339FlexibilityNo cancel feeOn-time69%

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