How long is the flight from Denver to Frankfurt?

Non-stop flights on DEN → FRA are typically around 9.5 hours. Connecting itineraries add 3–8 hours depending on the hub and layover.

Which airlines fly from Denver to Frankfurt?

The main carriers on this route are Lufthansa, United. Codeshare and one-stop options add several more — the filter panel above shows every airline in the current fare set.

When is the cheapest time to fly from Denver to Frankfurt?

Historically the lowest fares land in February, March, November. Summer (mid-June through mid-August) and the Christmas / New Year window are always peak. Mid-week departures (Tuesday–Thursday) typically beat weekend prices by 10–20%.

How far ahead should I book Denver to Frankfurt?

Six to ten weeks ahead is the sweet spot for this route. Inside three weeks, fares tend to spike as airlines sell to last-minute business travellers. Award availability often opens 10–11 months out if you're booking on miles.

Can I book directly on destination.com?

The Book button on each fare opens the airline or OTA (Trip.com, Kiwi, Expedia, Booking, Priceline, etc.) that's actually selling that ticket. You complete payment there at the same price you saw here — we never add a markup.

DEN → FRA

Denver to Frankfurt flights.

Live cached fares on Denver (DEN) → Frankfurt (FRA), refreshed every 30 minutes. Non-stop and connecting itineraries side by side — compare airlines, times and stops, then book in one click.

Flying time
~9.5h non-stop
Airlines
Lufthansa, United
Cheapest months
February, March, November

Flex dates · cheapest nearby

Loading prices…

No cached fares for exactly 2026-07-23 → 2026-07-30. Showing recent fares on DEN → FRA — pick a different date in the calendar above or run a live search.

Denver → Frankfurt · 3 fares

Cached from Travelpayouts · filter & sort below

Showing 3 of 3 results

Cheapest
Icelandair · FI 670
OutboundDEN → FRAFri, Jul 17 · 10:40 PM· 12h 5m· 2 stops
$425
one-way
Book →
Icelandair · FI 670
OutboundDEN → FRAThu, Jul 16 · 10:40 PM· 12h 5m· 2 stops
$486
one-way
Book →
Icelandair · FI 672
OutboundDEN → FRASun, Jul 19 · 2:10 AM· 12h· 2 stops
$521
one-way
Book →

About Denver → Frankfurt

United / Lufthansa Star hub-to-hub, daily. Only non-stop option from the Mountain West to Europe.

Typical non-stop flying time is around 9.5 hours. Major carriers on this route include Lufthansa, United. Fares are usually cheapest in February, March, November — book 6–10 weeks ahead and avoid school-holiday peaks (late June–August, Christmas–New Year) for the best pricing.

Month-by-month price guide: Denver to Frankfurt

Historically the cheapest months on DEN → FRA are February, March, November. Summer and the Christmas / New Year window are almost always peak.

January
Shoulder
February
Low
March
Low
April
Shoulder
May
Shoulder
June
Peak
July
Peak
August
Peak
September
Shoulder
October
Shoulder
November
Low
December
Peak

Booking window tip

Long-haul fares are most predictable when booked 10-16 weeks ahead. Inside six weeks expect sharp increases, especially in premium cabins. If you're paying with miles, search 330+ days ahead when award inventory first loads.

Price drop alerts

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Questions, answered

How long is the flight from Denver to Frankfurt?
Non-stop flights on DEN → FRA are typically around 9.5 hours. Connecting itineraries add 3–8 hours depending on the hub and layover.
Which airlines fly from Denver to Frankfurt?
The main carriers on this route are Lufthansa, United. Codeshare and one-stop options add several more — the filter panel above shows every airline in the current fare set.
When is the cheapest time to fly from Denver to Frankfurt?
Historically the lowest fares land in February, March, November. Summer (mid-June through mid-August) and the Christmas / New Year window are always peak. Mid-week departures (Tuesday–Thursday) typically beat weekend prices by 10–20%.
How far ahead should I book Denver to Frankfurt?
Six to ten weeks ahead is the sweet spot for this route. Inside three weeks, fares tend to spike as airlines sell to last-minute business travellers. Award availability often opens 10–11 months out if you're booking on miles.
Can I book directly on destination.com?
The Book button on each fare opens the airline or OTA (Trip.com, Kiwi, Expedia, Booking, Priceline, etc.) that's actually selling that ticket. You complete payment there at the same price you saw here — we never add a markup.

Other ways to reach Frankfurt

If your plans are flexible on the origin, these alternate departure airports also serve Frankfurt on the routes we track.