Reykjavík (KEF) to Chicago (ORD)

2,936mi
4,725 km2,551 nm

Flight time

≈ 6h 40m

Bearing

271° W

Reykjavík (KEF) to Chicago (ORD) is 2,936 miles (4,725 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.

Route map: KEF → ORDKEFORD

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What actually flies KEF–ORD

Filed traffic data

In July 2026, Icelandair operated the most departures, one of 2 carriers flying nonstop KEF–ORD; the Boeing 737 MAX 8 was the most common aircraft at 42% of departures; flights ran 73% full.

Departures

172

July 2026

Seats

30,338

both directions

Passengers

22,211

both directions

Load factor

73.2%

RPM ÷ ASM

Who flies KEF–ORD?

Icelandair operated the most nonstop KEF–ORD departures in July 2026 (114), one of 2 carriers on the route.

  • FI

    Icelandair

    114 departures · 18,912 seats

    71.4%

    Load

  • UA

    United Airlines

    58 departures · 11,426 seats

    76.3%

    Load

What plane flies KEF–ORD?

In July 2026, the Boeing 737 MAX 8 flew 42% of KEF–ORD departures — more than any other aircraft type.

How has KEF–ORD traffic changed?

Nonstop KEF–ORD departures fell from 186 in August 2025 to 172 in July 2026.

Monthly nonstop KEF–ORD traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.

  • August 2025

    186 departures · 26,646 passengers

    85.5%

    Load

  • September 2025

    143 departures · 20,639 passengers

    77.6%

    Load

  • October 2025

    78 departures · 11,975 passengers

    85.3%

    Load

  • November 2025

    61 departures · 8,751 passengers

    81.0%

    Load

  • December 2025

    62 departures · 8,686 passengers

    73.7%

    Load

  • January 2026

    63 departures · 8,037 passengers

    78.6%

    Load

  • February 2026

    54 departures · 6,303 passengers

    64.8%

    Load

  • March 2026

    64 departures · 9,140 passengers

    79.3%

    Load

  • April 2026

    74 departures · 10,110 passengers

    75.9%

    Load

  • May 2026

    39 departures · 4,231 passengers

    61.6%

    Load

  • June 2026

    171 departures · 24,730 passengers

    84.8%

    Load

  • July 2026

    172 departures · 22,211 passengers

    73.2%

    Load

By direction

Each direction is filed separately — they rarely match.

ORD → KEF

63.0% full

87 departures · 9,683 passengers

KEF → ORD

83.7% full

85 departures · 12,528 passengers

Nonstop KEF–ORD traffic has been filed since 2025.

Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).

The airports

KEF

Reykjavík

IS

Keflavik International Airport

Coordinates

63.98°N, 22.61°W

Hemisphere

N · W

ORD

Chicago

US

Chicago O'Hare International Airport

Coordinates

41.98°N, 87.90°W

Hemisphere

N · W

Frequently asked

How far is Reykjavík (KEF) from Chicago (ORD)?

KEF to ORD is 2,936 miles (4,725 km / 2,551 nautical miles) measured great-circle — the shortest path over the surface of the Earth.

How long is the flight from KEF to ORD?

A nonstop covers the 2,936-mile great-circle distance in roughly 6h 40m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.

What plane flies KEF–ORD?

In July 2026, the Boeing 737 MAX 8 flew the largest share of departures (41.9%), followed by the Boeing 737-900 (24.4%).

What mileage do I earn flying KEF–ORD?

Distance-based programs credit off the 2,936-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.

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