ZRH - DEN

$421 Find Cheap Flights from Zurich 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 Zurich to Denver departing on 5/15. 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 Zurich 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 Zurich to Denver, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$572
Typical prices: $701-$981
Icelandair
Tue 8/25Wed 9/30
ZRH - DEN • 1 stop
Cheapest non-stop
$826
SWISS
Wed 8/12Wed 8/19
ZRH - DEN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Zurich Airport's security is efficient and organized.
DEN offers a 40-minute train to downtown Denver.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
3 days a week
Wed, Fri, Sun
You can fly direct with SWISS. Average duration is 0
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top airlines
Cheapest • from $572 (round-trip)
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $778 (round-trip)
Shortest trip • 12h 57m (one-way)
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 67% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 15% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Zurich to Denver (ZRH-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Zurich 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 Zurich to Denver

Tue, Aug 25 - Wed, Sep 30
Icelandair Logo
2:00 pm - 7:00 pm
ZRH
-
DEN
13h 00m
1 stop
Icelandair Logo
4:40 pm - 1:05 pm
DEN
-
ZRH
12h 25m
1 stop
$572Icelandair
Sun, Aug 9 - Sat, Sep 5
Icelandair Logo
7:55 am - 12:40 pm
ZRH
-
DEN
12h 45m
1 stop
Icelandair Logo
4:40 pm - 1:05 pm
DEN
-
ZRH
12h 25m
1 stop
$575Icelandair
Sun, Aug 9 - Sat, Sep 5
Icelandair Logo
7:55 am - 12:40 pm
ZRH
-
DEN
12h 45m
1 stop
Icelandair Logo
8:10 pm - 1:05 pm
DEN
-
ZRH
32h 55m
1 stop
$577Icelandair
Sun, Aug 30 - Wed, Sep 16
Icelandair Logo
2:00 pm - 12:40 pm
ZRH
-
DEN
30h 40m
1 stop
Icelandair Logo
4:40 pm - 1:05 pm
DEN
-
ZRH
12h 25m
1 stop
$588Icelandair
Wed, Aug 12 - Wed, Aug 19
Icelandair Logo
7:55 am - 12:40 pm
ZRH
-
DEN
12h 45m
1 stop
Icelandair Logo
4:40 pm - 1:05 pm
DEN
-
ZRH
12h 25m
1 stop
$590Icelandair
Sun, Apr 26 - Mon, May 11
Icelandair Logo
2:00 pm - 7:00 pm
ZRH
-
DEN
13h 00m
1 stop
Icelandair Logo
4:40 pm - 1:05 pm
DEN
-
ZRH
12h 25m
1 stop
$597Icelandair
Fri, May 22 - Mon, Jun 1
Icelandair Logo
7:55 am - 7:00 pm
ZRH
-
DEN
19h 05m
1 stop
Icelandair Logo
4:40 pm - 1:05 pm
DEN
-
ZRH
12h 25m
1 stop
$607Icelandair
Fri, May 22 - Mon, Jun 1
Icelandair Logo
2:00 pm - 7:00 pm
ZRH
-
DEN
13h 00m
1 stop
Icelandair Logo
4:40 pm - 1:05 pm
DEN
-
ZRH
12h 25m
1 stop
$608Icelandair
Fri, May 22 - Mon, Jun 1
Icelandair Logo
7:55 am - 7:00 pm
ZRH
-
DEN
19h 05m
1 stop
Icelandair Logo
4:40 pm - 1:05 pm
DEN
-
ZRH
12h 25m
1 stop
$609Icelandair
Thu, Aug 13 - Thu, Aug 20
Icelandair Logo
2:00 pm - 12:40 pm
ZRH
-
DEN
30h 40m
1 stop
Icelandair Logo
4:40 pm - 1:05 pm
DEN
-
ZRH
12h 25m
1 stop
$613Icelandair
Booking Insights

KAYAK's insights & trends for Zurich to Denver flights

Get data-powered insights and trends into flights from Zurich 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 Zurich 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 Zurich to Denver departing in August.

What is the cheapest month to fly from Zurich to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Zurich 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 Zurich to Denver is September, where tickets cost $705 (return) on average. On the other hand, the most expensive months are February and August, where the average cost of round-trip tickets is $890 and $887 respectively.

Can I save money by flying with a layover from Zurich 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $645 on average.

How far in advance should I book a flight from Zurich 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 Zurich 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 Zurich to Denver, you should book around 4 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Expert advice

Expert advice for your flight from Zurich 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
Emily Zemler

Emily Zemler

Expert on ZRH

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

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 seasonNovember
Cheapest flight$421
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Zurich to Denver

When to book flights from Zurich to Denver

Are your dates flexible? Find out the best times to travel from Zurich 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 flights from Zurich to Denver

  • What is the cheapest flight from Zurich to Denver?

    In the last 3 days, the lowest price for a flight from Zurich to Denver was $421 for a one-way ticket and $572 for a round-trip.

  • Do I need a passport to fly between Zurich and Denver?

    Yes

  • Which airports will I be using when flying from Zurich to Denver?

    Zurich and Denver are both served by 1 main airport. You will leave Zurich from Zurich and will be arriving at Denver Intl.

  • Which airlines offer Wi-Fi service onboard planes from Zurich to Denver?

    SWISS, United Airlines, and Lufthansa offer inflight Wi-Fi service on the Zurich to Denver flight route.

  • Which aircraft models fly most regularly from Zurich to Denver?

    The Airbus A340-300 is the aircraft model that flies most regularly on the Zurich to Denver flight route.

  • Which airline alliances offer flights from Zurich to Denver?

    Star Alliance is the only airline alliance operating flights between Zurich and Denver.

  • Which is the best airline for flights from Zurich to Denver, SWISS or United Airlines?

    The two airlines most popular with KAYAK users for flights from Zurich to Denver are SWISS and United Airlines. With an average price for the route of $866 and an overall rating of 7.5, SWISS is the most popular choice. United Airlines is also a great choice for the route, with an average price of $879 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Zurich 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 Zurich to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Zurich 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 Zurich 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 Zurich with another airline. Booking your flights between Zurich 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 Zurich 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 Zurich 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 Zurich to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $881 or less one-way.

Prefer to fly direct from Zurich to Denver?

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

Direct departures

Zurich to Denver Intl

Wednesday

SWISS

SWISS

Friday

SWISS

SWISS

Sunday

SWISS

SWISS

See more direct flights

Direct returns

Denver Intl to Zurich

Wednesday

SWISS

SWISS

Friday

SWISS

SWISS

Sunday

SWISS

SWISS

See more direct flights

Reviews of the top 3 airlines serving from Zurich to Denver

 
See real verified KAYAK customer reviews for airlines flying from Zurich 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 Zurich 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.
7.5
SWISSOverall score based on 1892 reviews
7.7Boarding
6.8Entertainment
7.4Comfort
8.3Crew
7.1Food
Airline reviews

Business class seating in Swiss really is just Economy seating minus the middle passenger

6.0 GoodPhilipp, Feb 2026
ZRH - CAI
Read more SWISS reviews

Business class seating in Swiss really is just Economy seating minus the middle passenger

No choice of food was given, and I was served leftovers, so they were returned back. the crew is unfriendly and harsh. Need to be trained on communication.

Great flight. I didn't watch the entertainment. I used my iPad the whole flight. But, staff was great, smooth flight, comfortable seat (business seat 7A) and food was really good (I'm a vegetarian).

The flight was very nice but the food selection for the people in the last rows was limited to vegetarian meals only. I think vegetarian meal should not be offered as a main selection.

Drinking water could be in more sustainable packaging than plastic bottles

They lost my luggage on December 30th. It is now January 3rd and i still don’t have it. I’ve called lost and found multiple times and they cannot provide an update. They keep saying one day and then it gets postponed again. This is ridiculous and unprofessional. It’s infringing on my vacation. I have stressed how important it is for me to have my suitcase right away. It should have been resolved within 1-2 days.

Made us gate check carry ons Then didn’t get them on the plane. Service they used didn’t deliver our carry ons for more than a day Total mess

0lane 2qs on tim3. Very bad food. No free wifi, only for texts. Entertainment poor and hard to access.

At boarding, the locations where we had to have our passports checked prior to boarding were very unclear. Occasional staff wandered around telling people, but in busy area of the terminal this was not obvious. It was also located well after the check in desk in terms of walking to the gate. The Premium Economy service was attentive and warm. The only big draw back was lack of restrooms, and no division or even curtain between PE and Economy.

We had seats between the bathroom and a screaming baby, and did not have enough room to lay my head down on the tray table. Not ideal.

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.

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.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

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

Everything you need to know for your flight from Zurich to Denver

Information on your arrival and departure airports