Flights from Portland to Alton

Cheapest flights from Portland

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Nov 24 - Wed, Dec 10

PDX

Portland Intl.

LHR

Heathrow

$523 Roundtrip, found 1 day ago

$523

Roundtrip

found 1 day ago

Select Icelandair flight, departing Mon, Nov 24 from Portland Intl. to Heathrow, returning Wed, Dec 10, priced at $523 found 1 day ago

Mon, Nov 24 - Thu, Dec 11

PDX

Portland Intl.

LHR

Heathrow

$525 Roundtrip, found 1 day ago

$525

Roundtrip

found 1 day ago

Select Icelandair flight, departing Mon, Nov 24 from Portland Intl. to Heathrow, returning Thu, Dec 11, priced at $525 found 1 day ago

Wed, Aug 27 - Thu, Sep 4

PDX

Portland Intl.

LHR

Heathrow

$552 Roundtrip, found 6 days ago

$552

Roundtrip

found 6 days ago

Select British Airways flight, departing Wed, Aug 27 from Portland Intl. to Heathrow, returning Thu, Sep 4, priced at $552 found 6 days ago

Wed, Aug 27 - Thu, Sep 4

PDX

Portland Intl.

LHR

Heathrow

$552 Roundtrip, found 6 days ago

$552

Roundtrip

found 6 days ago

Select American Airlines flight, departing Wed, Aug 27 from Portland Intl. to Heathrow, returning Thu, Sep 4, priced at $552 found 6 days ago

Wed, Aug 27 - Thu, Sep 4

PDX

Portland Intl.

LHR

Heathrow

$562 Roundtrip, found 6 days ago

$562

Roundtrip

found 6 days ago

Select Virgin Atlantic flight, departing Wed, Aug 27 from Portland Intl. to Heathrow, returning Thu, Sep 4, priced at $562 found 6 days ago

Wed, Aug 27 - Thu, Sep 4

PDX

Portland Intl.

LHR

Heathrow

$562 Roundtrip, found 6 days ago

$562

Roundtrip

found 6 days ago

Select Delta flight, departing Wed, Aug 27 from Portland Intl. to Heathrow, returning Thu, Sep 4, priced at $562 found 6 days ago

Wed, Aug 27 - Thu, Sep 4

PDX

Portland Intl.

LHR

Heathrow

$567 Roundtrip, found 6 days ago

$567

Roundtrip

found 6 days ago

Select Virgin Atlantic flight, departing Wed, Aug 27 from Portland Intl. to Heathrow, returning Thu, Sep 4, priced at $567 found 6 days ago

Wed, Nov 26 - Thu, Dec 11

PDX

Portland Intl.

LHR

Heathrow

$614 Roundtrip, found 1 day ago

$614

Roundtrip

found 1 day ago

Select KLM flight, departing Wed, Nov 26 from Portland Intl. to Heathrow, returning Thu, Dec 11, priced at $614 found 1 day ago

Wed, Aug 27 - Thu, Sep 4

PDX

Portland Intl.

LHR

Heathrow

$614 Roundtrip, found 6 days ago

$614

Roundtrip

found 6 days ago

Select Air France flight, departing Wed, Aug 27 from Portland Intl. to Heathrow, returning Thu, Sep 4, priced at $614 found 6 days ago

Wed, Nov 26 - Mon, Dec 15

PDX

Portland Intl.

LHR

Heathrow

$625 Roundtrip, found 1 day ago

$625

Roundtrip

found 1 day ago

Select British Airways flight, departing Wed, Nov 26 from Portland Intl. to Heathrow, returning Mon, Dec 15, priced at $625 found 1 day ago

Sat, Nov 22 - Wed, Dec 10

PDX

Portland Intl.

LHR

Heathrow

$638 Roundtrip, found 1 day ago

$638

Roundtrip

found 1 day ago

Select Air Canada flight, departing Sat, Nov 22 from Portland Intl. to Heathrow, returning Wed, Dec 10, priced at $638 found 1 day ago

Sun, Nov 23 - Fri, Dec 12

PDX

Portland Intl.

LHR

Heathrow

$648 Roundtrip, found 1 day ago

$648

Roundtrip

found 1 day ago

Select United flight, departing Sun, Nov 23 from Portland Intl. to Heathrow, returning Fri, Dec 12, priced at $648 found 1 day ago

Tue, Nov 25 - Sat, Dec 13

PDX

Portland Intl.

LHR

Heathrow

$686 Roundtrip, found 1 day ago

$686

Roundtrip

found 1 day ago

Select Lufthansa flight, departing Tue, Nov 25 from Portland Intl. to Heathrow, returning Sat, Dec 13, priced at $686 found 1 day ago

Wed, Aug 27 - Thu, Sep 4

PDX

Portland Intl.

LHR

Heathrow

$779 Roundtrip, found 6 days ago

$779

Roundtrip

found 6 days ago

Select Brussels Airlines flight, departing Wed, Aug 27 from Portland Intl. to Heathrow, returning Thu, Sep 4, priced at $779 found 6 days ago

Wed, Aug 27 - Thu, Sep 4

PDX

Portland Intl.

LHR

Heathrow

$822 Roundtrip, found 6 days ago

$822

Roundtrip

found 6 days ago

Select Finnair flight, departing Wed, Aug 27 from Portland Intl. to Heathrow, returning Thu, Sep 4, priced at $822 found 6 days ago

Tue, Jul 22 - Wed, Jul 30

PDX

Portland Intl.

LHR

Heathrow

$873 Roundtrip, found 1 day ago

$873

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Tue, Jul 22 from Portland Intl. to Heathrow, returning Wed, Jul 30, priced at $873 found 1 day ago

Wed, Aug 27 - Thu, Sep 4

PDX

Portland Intl.

LHR

Heathrow

$922 Roundtrip, found 6 days ago

$922

Roundtrip

found 6 days ago

Select Iberia flight, departing Wed, Aug 27 from Portland Intl. to Heathrow, returning Thu, Sep 4, priced at $922 found 6 days ago

Wed, Aug 27 - Thu, Sep 4

PDX

Portland Intl.

LHR

Heathrow

$972 Roundtrip, found 6 days ago

$972

Roundtrip

found 6 days ago

Select Swiss International Air Lines flight, departing Wed, Aug 27 from Portland Intl. to Heathrow, returning Thu, Sep 4, priced at $972 found 6 days ago

Tue, Nov 25 - Sat, Dec 13

PDX

Portland Intl.

LHR

Heathrow

$1,072 Roundtrip, found 1 day ago

$1,072

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Tue, Nov 25 from Portland Intl. to Heathrow, returning Sat, Dec 13, priced at $1,072 found 1 day ago

Mon, Apr 13 - Tue, Apr 14

PDX

Portland Intl.

LHR

Heathrow

$1,701 Roundtrip, found 1 day ago

$1,701

Roundtrip

found 1 day ago

Select Aer Lingus flight, departing Mon, Apr 13 from Portland Intl. to Heathrow, returning Tue, Apr 14, priced at $1,701 found 1 day ago