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Denver → Reykjavik

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DEN → KEF1 adulteconomy

9 flight options · 3 airlines

Round-trip flights

Fri, Nov 20 – Mon, Nov 23

FI
3:40 pmDEN
7h 25m
Nonstop
6:05 am+1KEF
FI
4:55 pmKEF
8h 5m
Nonstop
6:00 pmDEN

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
4:35 pmDEN
10h 25m
ORD · 1h 30m
10:00 am+1KEF
FI
4:55 pmKEF
8h 5m
Nonstop
6:00 pmDEN

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

British Airways
5:05 pmDEN
13h 45m
LHR · 1h 15m
1:50 pm+1KEF
FI
4:55 pmKEF
8h 5m
Nonstop
6:00 pmDEN

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

FI
3:40 pmDEN
7h 25m
Nonstop
6:05 am+1KEF
FI
4:55 pmKEF
8h 5m
Nonstop
6:00 pmDEN

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
4:35 pmDEN
10h 25m
ORD · 1h 30m
10:00 am+1KEF
FI
4:55 pmKEF
8h 5m
Nonstop
6:00 pmDEN

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

British Airways
5:05 pmDEN
13h 45m
LHR · 1h 15m
1:50 pm+1KEF
FI
4:55 pmKEF
8h 5m
Nonstop
6:00 pmDEN

Round-trip total · 1 adult · Taxes included

One-way flights

Fri, Nov 20 · One way

FI
3:40 pmDEN
7h 25m
Nonstop
6:05 am+1KEF

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
4:35 pmDEN
10h 25m
ORD · 1h 30m
10:00 am+1KEF

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

British Airways
5:05 pmDEN
13h 45m
LHR · 1h 15m
1:50 pm+1KEF

One-way total · 1 adult · Taxes included

Make this trip yours

DEN ⇄ KEF

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

Nov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-11-20 · one wayFIFI670$380.002026-10-29T01:03:59Z
2026-11-20 → 2026-11-23FIFI670 / FI671$665.002026-10-29T01:03:59Z
2026-11-20 · one wayUnited AirlinesUA675 + UA912$475.002026-10-29T01:03:59Z
2026-11-20 · one wayBritish AirwaysBA218 + BA802$522.502026-10-29T01:03:59Z
2026-11-20 → 2026-11-23United Airlines / FIUA675 + UA912 / FI671$712.502026-10-29T01:03:59Z
2026-11-20 → 2026-11-23British Airways / FIBA218 + BA802 / FI671$736.252026-10-29T01:03:59Z
2026-11-27 → 2026-12-04FIFI670 / FI671$682.502026-10-29T01:03:59Z
2026-11-27 → 2026-12-04United Airlines / FIUA675 + UA912 / FI671$730.002026-10-29T01:03:59Z
2026-11-27 → 2026-12-04British Airways / FIBA218 + BA802 / FI671$753.752026-10-29T01:03:59Z

2026-11-20 · one way · $380.00

  • FI FI670: DEN 2026-11-20 15:40:00 → KEF 2026-11-21 06:05:00; nonstop; 445 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $665.00

  • FI FI670: DEN 2026-11-20 15:40:00 → KEF 2026-11-21 06:05:00; nonstop; 445 minutes. Local airport times.
  • FI FI671: KEF 2026-11-23 16:55:00 → DEN 2026-11-23 18:00:00; nonstop; 485 minutes. Local airport times.

2026-11-20 · one way · $475.00

  • United Airlines UA675 / UA912: DEN 2026-11-20 16:35:00 → KEF 2026-11-21 10:00:00; 1 stop(s) via ORD; 625 minutes. Local airport times.
    • UA675: DEN 2026-11-20 16:35:00 → ORD 2026-11-20 20:15:00; layover at ORD: 90 minutes.
    • UA912: ORD 2026-11-20 21:45:00 → KEF 2026-11-21 10:00:00.

2026-11-20 · one way · $522.50

  • British Airways BA218 / BA802: DEN 2026-11-20 17:05:00 → KEF 2026-11-21 13:50:00; 1 stop(s) via LHR; 825 minutes. Local airport times.
    • BA218: DEN 2026-11-20 17:05:00 → LHR 2026-11-21 09:15:00; layover at LHR: 75 minutes.
    • BA802: LHR 2026-11-21 10:30:00 → KEF 2026-11-21 13:50:00.

2026-11-20 → 2026-11-23 · $712.50

  • United Airlines UA675 / UA912: DEN 2026-11-20 16:35:00 → KEF 2026-11-21 10:00:00; 1 stop(s) via ORD; 625 minutes. Local airport times.
    • UA675: DEN 2026-11-20 16:35:00 → ORD 2026-11-20 20:15:00; layover at ORD: 90 minutes.
    • UA912: ORD 2026-11-20 21:45:00 → KEF 2026-11-21 10:00:00.
  • FI FI671: KEF 2026-11-23 16:55:00 → DEN 2026-11-23 18:00:00; nonstop; 485 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $736.25

  • British Airways BA218 / BA802: DEN 2026-11-20 17:05:00 → KEF 2026-11-21 13:50:00; 1 stop(s) via LHR; 825 minutes. Local airport times.
    • BA218: DEN 2026-11-20 17:05:00 → LHR 2026-11-21 09:15:00; layover at LHR: 75 minutes.
    • BA802: LHR 2026-11-21 10:30:00 → KEF 2026-11-21 13:50:00.
  • FI FI671: KEF 2026-11-23 16:55:00 → DEN 2026-11-23 18:00:00; nonstop; 485 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $682.50

  • FI FI670: DEN 2026-11-27 15:40:00 → KEF 2026-11-28 06:05:00; nonstop; 445 minutes. Local airport times.
  • FI FI671: KEF 2026-12-04 16:55:00 → DEN 2026-12-04 18:00:00; nonstop; 485 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $730.00

  • United Airlines UA675 / UA912: DEN 2026-11-27 16:35:00 → KEF 2026-11-28 10:00:00; 1 stop(s) via ORD; 625 minutes. Local airport times.
    • UA675: DEN 2026-11-27 16:35:00 → ORD 2026-11-27 20:15:00; layover at ORD: 90 minutes.
    • UA912: ORD 2026-11-27 21:45:00 → KEF 2026-11-28 10:00:00.
  • FI FI671: KEF 2026-12-04 16:55:00 → DEN 2026-12-04 18:00:00; nonstop; 485 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $753.75

  • British Airways BA218 / BA802: DEN 2026-11-27 17:05:00 → KEF 2026-11-28 13:50:00; 1 stop(s) via LHR; 825 minutes. Local airport times.
    • BA218: DEN 2026-11-27 17:05:00 → LHR 2026-11-28 09:15:00; layover at LHR: 75 minutes.
    • BA802: LHR 2026-11-28 10:30:00 → KEF 2026-11-28 13:50:00.
  • FI FI671: KEF 2026-12-04 16:55:00 → DEN 2026-12-04 18:00:00; nonstop; 485 minutes. Local airport times.

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