The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Chicago O'Hare International ⇄ Keflavik/Reykjavik ORD–KEF

Airlines flew 1,271 flights between Chicago O'Hare International ORD in Chicago, IL and Keflavik/Reykjavik, Iceland KEF in Keflavik/Reykjavik, IS in the twelve months to July 2026, both directions together: 173,540 passengers in 220,983 seats, 79% of them filled, and 564,762 pounds of freight. 2,944 miles, about 72 minutes in the air, on 4 airlines: Icelandair (1,000), United Air Lines Inc. (265), Kalitta Air LLC (3), FAI rent-a-jet AG (3).

1,271
flights, twelve months
ORD-KEF: 636 · KEF-ORD: 635
173,540
passengers
79% of seats filled
2,944
miles
about 72 minutes airborne
4
airlines
6 aircraft types

Flights by month both directions

046931401861/254/257/2510/251/264/261727/26
By month, as a table
flights
1/2560
2/2557
3/2562
4/2576
5/25129
6/25181
7/25184
8/25186
9/25143
10/2578
11/2561
12/2562
1/2666
2/2654
3/2664
4/2675
5/26139
6/26171
7/26172

Passengers by month

06,92713,85420,78227,7091/254/257/2510/251/264/2622,2117/26
By month, as a table
passengers
1/258,432
2/257,909
3/259,617
4/2510,154
5/2517,869
6/2527,709
7/2527,211
8/2526,646
9/2520,639
10/2511,975
11/258,751
12/258,686
1/268,037
2/266,303
3/269,140
4/2610,113
5/2616,309
6/2624,730
7/2622,211

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Icelandair FI1,000136,22179%scheduled passenger service
United Air Lines Inc. UA26537,31177%scheduled passenger service
Kalitta Air LLC KAQ30charter cargo service
FAI rent-a-jet AG IFQ3826%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing B737 Max 80062416983,366
Boeing 737-90037617852,855
Boeing 757-20023717633,185
Boeing 757-300282344,126
Boeing 747-400300
Bombardier Challenger 604/6053108

ORD → KEF this direction alone · flown January 2025 to July 2026

636 flights of 135 scheduled, 83,626 passengers in 110,798 seats, 57,818 pounds of freight. Icelandair 500; United Air Lines Inc. 134; Kalitta Air LLC 2.

KEF → ORD this direction alone · flown January 2025 to July 2026

635 flights of 135 scheduled, 89,914 passengers in 110,185 seats, 506,944 pounds of freight. Icelandair 500; United Air Lines Inc. 131; FAI rent-a-jet AG 3; Kalitta Air LLC 1.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Chicago O'Hare International ORD and Keflavik/Reykjavik, Iceland KEF; all routes.