Route brief · CHI → KEF
Chicago → Reykjavík
$442
−31% vs typical
seasonal median $645 · difference $203
Sep 9 – Sep 16 · 7 nights
IcelandairNonstop
- Usual monthly lows
- $465–$643
- Board rank
- Stronger than 80%
- Route sample
- 4 observed months
Cached fare — the booking search re-prices live before you pay.
Destination briefKEFReykjavíkWaterfalls, black beaches and the aurora — a stopover economy built on absurdly low fares.Best windowJun–Aug · Feb–Mar (aurora)AirportsKeflavík (KEF)All routes into ReykjavíkWhen this route gets cheap.
Cached-fare history: across 4 months, Sep is the cheapest for CHI → KEF. Best time to be there: Jun–Aug · Feb–Mar (aurora).
Fares bottom out in September around $442 and peak in June near $673 — a $231 spread across the 4 months we track. The cheapest itinerary we are tracking flies Icelandair nonstop and takes about 6 hours outbound, on a 7-night trip. At $442 for 4,720 km each way, that works out to about $47 per 1,000 km flown. That is above the $39 typical of medium-haul fares here. Across the 8 departure cities we track at a similar distance from Reykjavík, this fare ranks 4th — 55% above the $286 from Istanbul.
The 7 days we hold a cached fare for
Tap a date → live search
The median cached fare across this calendar is 2% higher than when tracking began on Aug 8 — $467 then versus $478 now, across 6 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $341, on Oct 3.
- Tue, Sep 8$478
- Wed, Sep 9$442
- Tue, Sep 15$641
- Wed, Sep 23$478
- Tue, Oct 6$643
- Fri, Nov 20$569
- Wed, Nov 25$465
These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.
Cheapest in Sep · around $442
31% below the $645 typical fare
Cheapest round-trip fare found per month · Chicago → Reykjavík · cached-price history
Route facts
- Airports
- O’Hare (ORD) · Midway (MDW) ↔ Keflavík (KEF)
- Flight time
- ~6 hours outbound
- Distance
- ~4,720 km each way
- Typical price
- $645 round-trip (seasonal median)
- Airlines on the board
- Icelandair
- Itineraries
- Nonstop available
- Best months to visit
- Jun–Aug · Feb–Mar (aurora)
CHI → KEF, answered.
Is $442 a good price for Chicago to Reykjavík?
Yes — the seasonal median for this route is around $645 round-trip. At $442 you're 31% below that, saving about $203, which we rate great for this route.
What is the cheapest month to fly from Chicago to Reykjavík?
Across 4 months of cached-fare history, Sep comes out cheapest on this route. The best months to actually be in Reykjavík are Jun–Aug · Feb–Mar (aurora) — when those overlap, that's your window.
How far in advance should I book CHI → Reykjavík?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. What we can measure is which month is cheap: across 4 months of cached fares, Sep comes out lowest on this route. See /guides/what-moves-a-flight-price/ for what does move a fare.
Are there nonstop flights from Chicago to Reykjavík?
Yes — the current board includes nonstop fares (Icelandair). The outbound leg runs around 6 hours.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on September 1). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Reykjavík?
Lock the flight first — then compare stays for Sep 9 – Sep 16 · 7 nights.
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Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next CHI → KEF drop reaches you as soon as we find it.
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