Cheap flights from Denver to Peterborough from CA $246

View CA $246 flight on Sun, Oct. 5, 2025Opens in a new window

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Cheap flights from Denver (DEN) to Peterborough (LHR)

Prices were available within the past 7 days and start at CA $246 for one-way flights and CA $688 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct. 29 - Thu, Nov. 6
DEN
Denver
LHR
London
CA $688 Roundtrip, found 12 hours ago
CA $688
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Oct. 29 from Denver to London, returning Thu, Nov. 6, priced at CA $688 found 12 hours ago
Virgin Atlantic
Sun, Aug. 24 - Tue, Sep. 2
DEN
Denver
LHR
London
CA $697 Roundtrip, found 1 day ago
CA $697
Roundtrip
found 1 day ago
Select Virgin Atlantic flight, departing Sun, Aug. 24 from Denver to London, returning Tue, Sep. 2, priced at CA $697 found 1 day ago
Delta
Sun, Aug. 24 - Tue, Sep. 2
DEN
Denver
LHR
London
CA $697 Roundtrip, found 1 day ago
CA $697
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Aug. 24 from Denver to London, returning Tue, Sep. 2, priced at CA $697 found 1 day ago
British Airways
Sun, Aug. 24 - Tue, Sep. 2
DEN
Denver
LHR
London
CA $707 Roundtrip, found 1 day ago
CA $707
Roundtrip
found 1 day ago
Select British Airways flight, departing Sun, Aug. 24 from Denver to London, returning Tue, Sep. 2, priced at CA $707 found 1 day ago
British Airways
Sun, Aug. 24 - Tue, Sep. 2
DEN
Denver
LHR
London
CA $707 Roundtrip, found 1 day ago
CA $707
Roundtrip
found 1 day ago
Select British Airways flight, departing Sun, Aug. 24 from Denver to London, returning Tue, Sep. 2, priced at CA $707 found 1 day ago
American Airlines
Sun, Aug. 24 - Tue, Sep. 2
DEN
Denver
LHR
London
CA $708 Roundtrip, found 1 day ago
CA $708
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Aug. 24 from Denver to London, returning Tue, Sep. 2, priced at CA $708 found 1 day ago

Find the cheapest month to fly from Denver (DEN) to London (LHR)

August is typically the cheapest month to fly

From CA $686 - CA $1,563 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.