$1,139 CHEAP FLIGHTS from Cologne to Ontario (CGN - ONT) | KAYAK

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Flight Deals

Cheap Flights from Cologne to Ontario (CGN-ONT)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Cologne to Ontario

Mon, Nov 2 - Sat, Nov 21

9:20 am - 8:15 pmCGN Cologne Köln/Bonn-ONT Ontario

19h 55m2 stops Munich Franz Josef Strauss San Francisco

1:29 pm - 4:55 pmONT Ontario-CGN Cologne Köln/Bonn

18h 26m2 stops Denver Intl Munich Franz Josef Strauss

$1,139United Airlines

Tue, Sep 22 - Wed, Sep 30

8:30 am - 8:53 pmCGN Cologne Köln/Bonn-ONT Ontario

21h 23m2 stops Munich Franz Josef Strauss Denver Intl

11:10 am - 12:25 pmONT Ontario-CGN Cologne Köln/Bonn

16h 15m2 stops San Francisco Munich Franz Josef Strauss

$1,258United Airlines

Fri, Sep 25 - Mon, Oct 5

10:25 am - 8:57 pmCGN Cologne Köln/Bonn-ONT Ontario

43h 32m2 stops Istanbul New York John F Kennedy Intl

10:42 pm - 9:25 amONT Ontario-CGN Cologne Köln/Bonn

49h 43m2 stops New York John F Kennedy Intl Istanbul

$1,689Turkish Airlines

Wed, Sep 16 - Sun, Sep 20

7:15 pm - 8:57 pmCGN Cologne Köln/Bonn-ONT Ontario

34h 42m2 stops Istanbul New York John F Kennedy Intl

10:39 pm - 9:25 amONT Ontario-CGN Cologne Köln/Bonn

49h 46m2 stops New York John F Kennedy Intl Istanbul

$1,825Turkish Airlines

Mon, Sep 14 - Sun, Sep 27

7:15 pm - 8:57 pmCGN Cologne Köln/Bonn-ONT Ontario

34h 42m2 stops Istanbul New York John F Kennedy Intl

10:39 pm - 9:25 amONT Ontario-CGN Cologne Köln/Bonn

25h 46m2 stops New York John F Kennedy Intl Istanbul

$1,893Turkish Airlines

Mon, Sep 14 - Sun, Sep 27

7:15 pm - 8:57 pmCGN Cologne Köln/Bonn-ONT Ontario

34h 42m2 stops Istanbul New York John F Kennedy Intl

10:39 pm - 9:25 amONT Ontario-CGN Cologne Köln/Bonn

25h 46m2 stops New York John F Kennedy Intl Istanbul

$1,896Turkish Airlines

Mon, Sep 14 - Sun, Sep 27

7:15 pm - 8:57 pmCGN Cologne Köln/Bonn-ONT Ontario

34h 42m2 stops Istanbul New York John F Kennedy Intl

10:39 pm - 9:25 amONT Ontario-CGN Cologne Köln/Bonn

25h 46m2 stops New York John F Kennedy Intl Istanbul

$1,902Turkish Airlines

Mon, Sep 14 - Sun, Sep 27

7:15 pm - 8:57 pmCGN Cologne Köln/Bonn-ONT Ontario

34h 42m2 stops Istanbul New York John F Kennedy Intl

10:39 pm - 9:25 amONT Ontario-CGN Cologne Köln/Bonn

25h 46m2 stops New York John F Kennedy Intl Istanbul

$1,907Turkish Airlines

Mon, Sep 14 - Sun, Sep 27

7:15 pm - 8:57 pmCGN Cologne Köln/Bonn-ONT Ontario

34h 42m2 stops Istanbul New York John F Kennedy Intl

10:39 pm - 9:25 amONT Ontario-CGN Cologne Köln/Bonn

25h 46m2 stops New York John F Kennedy Intl Istanbul

$2,104Turkish Airlines

Mon, Sep 14 - Sun, Sep 27

7:15 pm - 8:57 pmCGN Cologne Köln/Bonn-ONT Ontario

34h 42m2 stops Istanbul New York John F Kennedy Intl

10:39 pm - 9:25 amONT Ontario-CGN Cologne Köln/Bonn

25h 46m2 stops New York John F Kennedy Intl Istanbul

$2,105Turkish Airlines

Booking Insights

Price, demand and travel trends for Cologne to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Cologne to Ontario with more confidence.

What is the cheapest airline to fly from Cologne to Ontario?

United Airlines ($1,139) and Turkish Airlines ($1,689) are the cheapest airlines to fly round-trip from Cologne to Ontario according to KAYAK data over the last 5 days.

Cheapest flight	$1,139

Flight from Cologne to Ontario

When to book flights from Cologne to Ontario

Are your dates flexible? Find out the best times to travel from Cologne to Ontario 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.

Which airports can I use when flying from Cologne to Ontario?
Flights from Cologne to Ontario usually depart from Cologne Köln/Bonn (CGN) and arrive at Ontario (ONT).
What popular places can I visit in Ontario?
Some of the most popular sights in Ontario are Ontario Convention Center, Ontario Mills and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.
Do I need a passport to fly from Cologne to Ontario?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
Have flight prices from Cologne to Ontario changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,139 to $5,946. That means the highest observed fare was about 5x higher than the lowest one.
What is the time difference between Cologne and Ontario?
Ontario is 9 hours behind Cologne (Pacific Time vs Central European Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at Ontario Airport (ONT)?
Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:
· Fox
· Thrifty
· Europcar
· Dollar
· Alamo

If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.
- Azure Hotel & Suites, Trademark Collection by Wyndham
- La Quinta Inn & Suites by Wyndham Ontario Airport
- Holiday Inn Ontario Airport By IHG

Everything you need to know for your flight from Cologne to Ontario

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