FRA - DEN

$432 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 12/16. 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
$663
Overall average: $876
Icelandair
Sun 12/7Thu 12/11
FRA - DEN • 1 stop
Cheapest non-stop
$693
Typical prices: $659-$872
Lufthansa
Mon 11/10Mon 11/24
FRA - DEN • Non-stop
Our travelers' advice
AI-generated summary based on content written by travel experts
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
Icelandair
Cheapest • from $663 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 11% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
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Expert advice
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

Sun, Dec 7 - Thu, Dec 11
Icelandair Logo
1:05 pm - 6:05 pmFRA-DEN
13h 00m1 stop
Icelandair Logo
3:40 pm - 12:05 pmDEN-FRA
12h 25m1 stop
$663Icelandair
Find Deal
Wed, Mar 25 - Thu, Apr 9
Icelandair Logo
1:05 pm - 7:05 pmFRA-DEN
13h 00m1 stop
Icelandair Logo
4:40 pm - 1:00 pmDEN-FRA
12h 20m1 stop
$670Icelandair
Find Deal
Mon, Jan 12 - Thu, Jan 15
Multiple Airlines Logo
1:55 pm - 11:36 pmFRA-DEN
17h 41m1 stop
Multiple Airlines Logo
7:00 am - 12:50 pmDEN-FRA
21h 50m1 stop
$674Multiple Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 24
Multiple Airlines Logo
9:45 am - 7:55 pmFRA-DEN
18h 10m1 stop
Multiple Airlines Logo
5:45 pm - 11:30 amDEN-FRA
9h 45mnonstop
$676Multiple Airlines
Find Deal
Thu, Feb 12 - Wed, Feb 25
British Airways Logo
7:20 am - 3:30 pmFRA-DEN
16h 10m1 stop
British Airways Logo
5:25 pm - 2:05 pmDEN-FRA
12h 40m1 stop
$684British Airways
Find Deal
Fri, Mar 13 - Fri, Mar 27
British Airways Logo
11:35 am - 10:19 pmFRA-DEN
17h 44m2 stops
British Airways Logo
6:25 pm - 3:40 pmDEN-FRA
14h 15m1 stop
$690British Airways
Find Deal
Mon, Nov 10 - Mon, Nov 24
Lufthansa Logo
1:10 pm - 4:00 pmFRA-DEN
10h 50mnonstop
Lufthansa Logo
5:45 pm - 11:30 amDEN-FRA
9h 45mnonstop
$693Lufthansa
Find Deal
Mon, Nov 10 - Mon, Nov 24
Lufthansa Logo
8:15 am - 2:35 pmFRA-DEN
14h 20m1 stop
Lufthansa Logo
5:45 pm - 11:30 amDEN-FRA
9h 45mnonstop
$700Lufthansa
Find Deal
Mon, Nov 10 - Mon, Nov 24
United Airlines Logo
8:15 am - 2:35 pmFRA-DEN
14h 20m1 stop
United Airlines Logo
11:15 am - 7:25 amDEN-FRA
12h 10m1 stop
$728United Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 24
United Airlines Logo
8:15 am - 2:35 pmFRA-DEN
14h 20m1 stop
United Airlines Logo
5:45 pm - 11:30 amDEN-FRA
9h 45mnonstop
$729United Airlines
Find Deal
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.

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 Tuesday and avoid Saturdays if you are looking for the best rates. For your return to Frankfurt am Main, you’ll find the best rates on Tuesdays 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 February, where tickets cost $715 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $1,021 and $876 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 $714, 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 29% 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

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Lufthansa

Enjoy three-course meals and complimentary drinks in Economy on long-haul flights.


Lufthansa's FlyNet Premium offers internet for social media and streaming on long-haul flights.

Read more about Lufthansaby Jessica Macdonald
United Airlines

United Polaris offers lie-flat seats with aisle access on long-haul flights.


United's Premium Plus provides extra recline and legroom on long-haul flights.

Airports
FRA

Prepare for long queues at check-in and security. Arrive early and consider online check-in to save time.

Read more about FRAby Duncan Madden
DEN

Use the RTD A line train for a cost-effective 40-minute ride to downtown Denver from DEN.

Read more about DENby Harriet Baskas
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Jessica Macdonald

Jessica Macdonald

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.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

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.

Read more
Duncan Madden

Duncan Madden

Expert on FRA

Duncan Madden

Duncan Madden

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.

Read more
Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet Baskas

Harriet Baskas

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.

Read more

Good to know

Low seasonJanuary
Cheapest flight$432
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 3% increase in price.
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 $432 for a one-way ticket and $663 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?

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

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

    The Airbus A350-900 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?

    oneworld, and Star Alliance are the airline alliances operating flights between Frankfurt am Main and Denver, with oneworld being the most commonly used for this route.

  • 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 $896 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 $620 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 $761 or less one-way and $862 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

United Airlines

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

United Airlines

United Airlines

Saturday

Lufthansa, United Airlines

Lufthansa, United Airlines

Sunday

Lufthansa, United Airlines

Lufthansa, United Airlines

See more direct flights

Reviews of the top 4 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 8998 reviews
6.6Food
8.1Crew
7.3Comfort
7.7Boarding
7.1Entertainment
Airline reviews

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

8.0 ExcellentBen, Oct 2025YYC - DEN
Read more United Airlines reviews

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

It was good. The air plane is clean and staff were friendly.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Everything went well. I will fly with Lufthansa again. And use Kayak whenever I book flights

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Food was poor quality and the screens for entertainment didn’t work properly

United lost my travel information and canceled my original flight. I had a seat assignment but was refused the booking. I had to prove that I went to Germany on United Very concerned about security that no one recorded my passport from Cleveland to NY and NY to Frankfurt I arrived at home at 12:30am on Saturday instead of 8pm I expect a full refund from United Please provide information to assure compensation

I paid for extra legroom which made the long flight very comfortable. Food was very tasty, they fed us 2 meals plus a cookie snack and extra liquids. Checked luggage is expensive.

Lufthansa is turning into a budget airline. On transfers, the luggage never arrives if you have less than 2 hours for the transfer. This is happened to me multiple times when I end up on flights serviced by Lufthansa. The first leg of the flight was serviced by Discover Airlines. It was a 3-hour flight and they only offer a glass of water. Everything else is for purchase. I purchased my ticket as economy which should have included a bag but it ended up booking as economy light so I had to pay for a bag in each direction.

We left 1.5 hours late therefore missing my connection. The airline didn’t give vouchers.

Food could have something without dairy, I couldn't eat anything. Tv for both seats was malfunctioning. They have one bottle of ginger ale for entire plane.... and I paid extra for these seats...very disappointed

We took two long flights with Lufthansa, both were delayed making us miss our connecting flights. Lufthansa took care of the first one. The second was a switch to United and figuring out how to rebook was not a pleasant experience.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

Crew service was poor and very little difference between premium economy and economy. Disappointed.

My bags never made it on the flight and I now have to wait for them to arrive hopefully tomorrow. You can’t even track your bags in the app to see where they are since they didn’t arrive. You have to file a claim and then wait for them to inform you when you will receive your bag. We were already delayed for an hour due to baggage so I don’t understand how my bag didn’t make the flight.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

I am a 25+ years American Airlines member. British Airways is simply above and beyond in every customer satisfaction category.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

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

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