Find Cheap Flights to Europe

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Chicago to Europe

(Round-trip)
Depart: Tue Jan 16 2018 Return: Tue Jan 23 2018 Trip spans 8 days
WOW air
WOW air
ORD
KEF
6h 10m
nonstop
KEF
ORD
6h 45m
nonstop
Depart: Sun Sep 3 2017 Return: Wed Sep 20 2017 Trip spans 18 days
SWISS
SWISS
ORD
WAW
11h 10m
1 stop
WAW
ORD
23h 35m
1 stop
Depart: Thu Oct 12 2017 Return: Thu Oct 19 2017 Trip spans 8 days
Finnair
Finnair
ORD
WAW
13h 35m
1 stop
WAW
ORD
12h 40m
1 stop
Depart: Mon Sep 11 2017 Return: Thu Oct 12 2017 Trip spans 32 days
Air Canada
Air Canada
ORD
BUD
21h 40m
1 stop
BUD
ORD
15h 49m
1 stop
Depart: Tue Aug 29 2017 Return: Wed Sep 6 2017 Trip spans 9 days
Lufthansa
Lufthansa
ORD
BUD
14h 45m
1 stop
BUD
ORD
11h 50m
1 stop
Depart: Fri Jan 26 2018 Return: Sun Feb 4 2018 Trip spans 10 days
Icelandair
Icelandair
ORD
FRA
10h 30m
1 stop
FRA
ORD
11h 10m
1 stop
Depart: Sat Sep 9 2017 Return: Fri Sep 15 2017 Trip spans 7 days
airberlin
airberlin
ORD
TXL
8h 45m
nonstop
TXL
ORD
9h 20m
nonstop
Depart: Fri Dec 1 2017 Return: Fri Dec 8 2017 Trip spans 8 days
Air France
Air France
ORD
FRA
13h 25m
1 stop
FRA
ORD
12h 28m
1 stop
Depart: Mon Sep 11 2017 Return: Wed Oct 11 2017 Trip spans 31 days
Delta
Delta
MDW
BUD
15h 27m
2 stops
BUD
MDW
18h 15m
2 stops
Depart: Wed Oct 4 2017 Return: Tue Oct 10 2017 Trip spans 7 days
KLM
KLM
MDW
BUD
16h 43m
2 stops
BUD
MDW
18h 35m
2 stops
Depart: Mon Dec 4 2017 Return: Tue Dec 12 2017 Trip spans 9 days
Brussels Airlines
Brussels Airlines
ORD
BUD
21h 35m
1 stop
BUD
ORD
13h 55m
1 stop
Depart: Wed Oct 11 2017 Return: Thu Nov 2 2017 Trip spans 23 days
Turkish Airlines
Turkish Airlines
ORD
FCO
19h 15m
1 stop
FCO
ORD
17h 45m
1 stop
Depart: Fri Oct 27 2017 Return: Mon Oct 30 2017 Trip spans 4 days
Aer Lingus
Aer Lingus
ORD
DUB
7h 30m
nonstop
DUB
ORD
8h 40m
nonstop
Depart: Thu Aug 24 2017 Return: Thu Aug 31 2017 Trip spans 8 days
United
United
ORD
ZRH
16h 30m
1 stop
ZRH
ORD
9h 30m
nonstop
Depart: Wed Aug 30 2017 Return: Mon Sep 4 2017 Trip spans 6 days
Iberia
Iberia
ORD
TXL
15h 05m
1 stop
TXL
ORD
13h 35m
1 stop
Depart: Fri Aug 25 2017 Return: Sun Sep 3 2017 Trip spans 10 days
American Airlines
American Airlines
ORD
ZRH
12h 35m
1 stop
ZRH
ORD
14h 50m
1 stop
Depart: Wed Feb 14 2018 Return: Tue Feb 20 2018 Trip spans 7 days
SAS
SAS
ORD
DUB
31h 50m
1 stop
DUB
ORD
30h 05m
1 stop
Depart: Fri Feb 2 2018 Return: Tue Feb 6 2018 Trip spans 5 days
WOW air
WOW air
ORD
KEF
6h 10m
nonstop
KEF
ORD
6h 45m
nonstop
Depart: Fri Nov 3 2017 Return: Sun Nov 19 2017 Trip spans 17 days
LOT Polish Airlines
LOT Polish Airlines
ORD
KRK
11h 40m
1 stop
KRK
ORD
14h 40m
1 stop
Depart: Sun Feb 18 2018 Return: Sat Feb 24 2018 Trip spans 7 days
British Airways
British Airways
ORD
LIS
31h 25m
1 stop
LIS
ORD
30h 00m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Chicago
only $300
only $477
Destination

Budapest
$407
Reykjavik
$300
Warsaw
$405
Rome
$537
Krakow
$656
Lisbon
$682
Berlin
$442
Dublin
$546
Frankfurt am Main
$418
Zurich
$554