FRA - DEN

$383 Find Cheap Flights from Frankfurt am Main to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Frankfurt am Main to Denver departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Frankfurt am Main to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Frankfurt am Main to Denver, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$709
Typical prices: $714-$940
Icelandair
Mon 8/24Sun 9/6
FRA - DEN • 1 stop
Cheapest non-stop
$750
Typical prices: $756-$935
Lufthansa
Sun 4/5Sat 4/18
FRA - DEN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Lufthansa offers three-course meals in Economy.
Expect long queues at Frankfurt check-in and security.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $709 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Lufthansa and United Airlines. Average duration is 10h 40m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $663 (round-trip)
Shortest trip • 13h 00m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 26% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 10% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Denver!
Flight Deals
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Flight Deals

Cheap Flights from Frankfurt am Main to Denver (FRA-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Frankfurt am Main to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Frankfurt am Main to Denver

Mon, Aug 24 - Sun, Sep 6
Icelandair Logo
7:25 am - 12:40 pm
FRA
-
DEN
13h 15m
1 stop
Icelandair Logo
4:40 pm - 1:00 pm
DEN
-
FRA
12h 20m
1 stop
$709Icelandair
Thu, Aug 20 - Thu, Sep 10
Icelandair Logo
7:25 am - 12:40 pm
FRA
-
DEN
13h 15m
1 stop
Icelandair Logo
4:40 pm - 1:00 pm
DEN
-
FRA
12h 20m
1 stop
$711Icelandair
Fri, Aug 21 - Sat, Sep 5
Icelandair Logo
7:25 am - 7:00 pm
FRA
-
DEN
19h 35m
1 stop
Icelandair Logo
4:40 pm - 1:00 pm
DEN
-
FRA
12h 20m
1 stop
$712Icelandair
Tue, May 12 - Sun, Jun 14
Icelandair Logo
2:00 pm - 7:00 pm
FRA
-
DEN
13h 00m
1 stop
Icelandair Logo
4:40 pm - 1:00 pm
DEN
-
FRA
12h 20m
1 stop
$713Icelandair
Tue, May 12 - Thu, Jun 11
Icelandair Logo
2:00 pm - 7:00 pm
FRA
-
DEN
13h 00m
1 stop
Icelandair Logo
4:40 pm - 6:25 am
DEN
-
FRA
29h 45m
1 stop
$714Icelandair
Sat, Sep 5 - Mon, Sep 14
Icelandair Logo
7:25 am - 7:00 pm
FRA
-
DEN
19h 35m
1 stop
Icelandair Logo
4:40 pm - 1:00 pm
DEN
-
FRA
12h 20m
1 stop
$715Icelandair
Sun, May 17 - Sat, Jun 13
Icelandair Logo
5:10 pm - 7:00 pm
FRA
-
DEN
33h 50m
1 stop
Icelandair Logo
8:10 pm - 6:25 am
DEN
-
FRA
26h 15m
1 stop
$716Icelandair
Sun, Apr 5 - Sat, Apr 18
Icelandair Logo
5:10 pm - 7:00 pm
FRA
-
DEN
33h 50m
1 stop
Icelandair Logo
4:40 pm - 1:00 pm
DEN
-
FRA
12h 20m
1 stop
$717Icelandair
Sun, Apr 19 - Thu, Dec 10
Icelandair Logo
5:10 pm - 7:00 pm
FRA
-
DEN
33h 50m
1 stop
Icelandair Logo
3:40 pm - 12:05 pm
DEN
-
FRA
12h 25m
1 stop
$718Icelandair
Thu, Aug 20 - Mon, Aug 31
Icelandair Logo
7:25 am - 7:00 pm
FRA
-
DEN
19h 35m
1 stop
Icelandair Logo
4:40 pm - 1:00 pm
DEN
-
FRA
12h 20m
1 stop
$719Icelandair
Booking Insights

KAYAK's insights & trends for Frankfurt am Main to Denver flights

Get data-powered insights and trends into flights from Frankfurt am Main to Denver to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Frankfurt am Main Airport to Denver?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Frankfurt am Main Airport to Denver departing in August.

What’s the cheapest day of the week to fly from Frankfurt am Main to Denver?

The average price of all round-trip flights from Frankfurt am Main Airport to Denver clicked on KAYAK for each day over the last 12 months.

When flying from Frankfurt am Main to Denver, you should consider leaving on a Monday and avoid Sundays if you are looking for the best rates. For your return to Frankfurt am Main, you’ll find the best rates on Wednesdays and the most expensive ones on Saturdays.

What is the cheapest month to fly from Frankfurt am Main Airport to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Frankfurt am Main Airport to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Frankfurt am Main Airport to Denver is October, where tickets cost $767 (return) on average. On the other hand, the most expensive months are July and January, where the average cost of round-trip tickets is $1,071 and $959 respectively.

Can I save money by flying with a layover from Frankfurt am Main Airport to Denver?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $905, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Frankfurt am Main Airport to Denver?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Frankfurt am Main Airport to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Frankfurt am Main Airport to Denver, you should book around 5 weeks before departure, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Expert advice

Expert advice for your flight from Frankfurt am Main to Denver

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Duncan Madden

Duncan Madden

Expert on FRA

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonJanuary
Cheapest flight$383
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Frankfurt am Main to Denver

When to book flights from Frankfurt am Main to Denver

Are your dates flexible? Find out the best times to travel from Frankfurt am Main to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Frankfurt am Main to Denver flights

  • What is the cheapest flight from Frankfurt am Main Airport to Denver?

    In the last 3 days, the lowest price for a flight from Frankfurt am Main Airport to Denver was $383 for a one-way ticket and $709 for a round-trip.

  • Do I need a passport to fly between Frankfurt am Main and Denver?

    Yes, you’ll need a passport to travel to Denver from Frankfurt am Main.

  • Which airports will I be using when flying from Frankfurt am Main to Denver?

    On your way to Denver, you’ll fly out from Frankfurt am Main. You’ll be landing at Denver Intl.

  • Which airlines offer Wi-Fi service onboard planes from Frankfurt am Main to Denver?

    All the following airlines offer inflight Wi-Fi service on the Frankfurt am Main to Denver flight route: Lufthansa, United Airlines, Brussels Airlines, Air Canada, Delta, and American Airlines.

  • Which aircraft models fly most regularly from Frankfurt am Main to Denver?

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the Frankfurt am Main to Denver flight route.

  • Which airline alliances offer flights from Frankfurt am Main to Denver?

    Star Alliance is the only airline alliance operating flights between Frankfurt am Main and Denver.

  • On which days can I fly direct from Frankfurt am Main to Denver?

    There are nonstop flights from Frankfurt am Main to Denver on a daily basis.

  • Which is the best airline for flights from Frankfurt am Main to Denver, United Airlines or Icelandair?

    The two airlines most popular with KAYAK users for flights from Frankfurt am Main to Denver are United Airlines and Icelandair. With an average price for the route of $873 and an overall rating of 7.4, United Airlines is the most popular choice. Icelandair is also a great choice for the route, with an average price of $652 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Frankfurt am Main to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Frankfurt am Main to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Frankfurt am Main to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Frankfurt am Main is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Frankfurt am Main to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Frankfurt am Main with another airline. Booking your flights between Frankfurt am Main and DEN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Frankfurt am Main to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Frankfurt am Main up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Frankfurt am Main Airport to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $773 or less one-way and $785 or less round-trip.

Prefer to fly direct from Frankfurt am Main to Denver?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Frankfurt am Main to Denver Intl.
Find which airlines fly direct from Frankfurt am Main Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Frankfurt am Main to Denver Intl

Monday

Lufthansa,United Airlines

Lufthansa,United Airlines

Tuesday

Lufthansa,United Airlines

Lufthansa,United Airlines

Wednesday

Lufthansa,United Airlines

Lufthansa,United Airlines

Thursday

Lufthansa,United Airlines

Lufthansa,United Airlines

Friday

Lufthansa,United Airlines

Lufthansa,United Airlines

Saturday

Lufthansa,United Airlines

Lufthansa,United Airlines

Sunday

Lufthansa,United Airlines

Lufthansa,United Airlines

See more direct flights

Direct returns

Denver Intl to Frankfurt am Main

Monday

Lufthansa,United Airlines

Lufthansa,United Airlines

Tuesday

Lufthansa,United Airlines

Lufthansa,United Airlines

Wednesday

Lufthansa,United Airlines

Lufthansa,United Airlines

Thursday

Lufthansa,United Airlines

Lufthansa,United Airlines

Friday

Lufthansa,United Airlines

Lufthansa,United Airlines

Saturday

Lufthansa,United Airlines

Lufthansa,United Airlines

Sunday

Lufthansa,United Airlines

Lufthansa,United Airlines

See more direct flights

Reviews of the top 3 airlines serving from Frankfurt am Main to Denver

 
See real verified KAYAK customer reviews for airlines flying from Frankfurt am Main to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Frankfurt am Main to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9426 reviews
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
Airline reviews

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

6.0 GoodAnonymous, Mar 2026
SFO - DEN
Read more United Airlines reviews

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

It’s always a great time flying with united airlines.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

As great a red-eye flight as red-eye flights can be.

Both of my flights arrived early and check in process was smooth

Everything was on time Will use united again for sure

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

Iceland Air severely damaged a checked bag. Additionally, the gate agent caused issues for many passengers who had standard-sized onboard bags that would have passed inspection by any other airline.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

It was good. The seats in economy weren’t bad

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Not great - seats were very narrow and food was terrible.

Some of the crew was sassy and not super helpful. The food was okay, but it seems like they were all unprepared compared to my flight I did from JFK to Frankfurt

I don’t understand how they charge as much as they do for such a poor experience

I wish the plane had pod seating for business class. I had a window seat (8K) and I had to climb over the person sitting on the aisle when I needed to get up. Also there is no partition between the seats for privacy when sleeping. The Asian airlines have much nicer business class seating. Their seats are wider for better comfort when sleeping.

Bumpy ride, not Lufthansa‘s fault. Crew managed a situation over a back rest to far down well. It was two iles behind me. The person putting the seat down, against the other person’s knees, was quite rude and belligerent and needed to be told in a no nonsense matter to stopp. Male flight attendant did good job.

Booked seats (paid extra) online and found they didn’t exist on the flight. We were then separated from the rest of our party. Given seats in the very back of the plane. We will not fly Discover or Lufthansa again. We will not book flights or travel through Kayak again!

Everything you need to know for your flight from Frankfurt am Main to Denver

Information on your arrival and departure airports