Cheapest return flights from Chicago to Frankfurt in September from $602
AirHint found the following cheapest return flights from Chicago (ORD) to Frankfurt (FRA)
in September 2025 (see full year ).
Return flights
16 Sep
- 07 Oct
Condor
$ 602
09 Sep
- 29 Sep
Condor
$ 604
27 Sep
- 06 Oct
Condor
$ 651
10 Sep
- 17 Sep
Frontier Airlines
$ 660
24 Sep
- 01 Oct
Frontier Airlines
$ 669
08 Sep
- 29 Sep
Condor
$ 675
17 Sep
- 01 Oct
Spirit Airlines
$ 676
11 Sep
- 18 Sep
Spirit Airlines
$ 685
09 Sep
- 30 Sep
Frontier Airlines
$ 706
25 Sep
- 29 Sep
Spirit Airlines
$ 708
10 Sep
- 01 Oct
Frontier Airlines
$ 714
10 Sep
- 30 Sep
Frontier Airlines
$ 715
08 Sep
- 01 Oct
Frontier Airlines
$ 716
23 Sep
- 14 Oct
Turkish Airlines
$ 723
09 Sep
- 23 Sep
Spirit Airlines
$ 725
14 Sep
- 20 Sep
Air Canada
$ 734
08 Sep
- 02 Oct
Frontier Airlines
$ 735
28 Sep
- 12 Oct
Turkish Airlines
$ 738
09 Sep
- 14 Sep
jetBlue
$ 742
18 Sep
- 02 Oct
Spirit Airlines
$ 807
Also check the deals for one-way flights from Chicago to Frankfurt in September .
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers.
Only the cheapest flights are offered.
Select a price to book and secure these cheap prices.
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