Cheap Flights To Nine 2026

Nine Flights as Low as $605

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.

TAP Portugal
Sun, Jan 17 - Tue, Feb 2
BOS
Logan Intl.
OPO
Dr. Francisco de Sa Carneiro
$605 Roundtrip, found 1 day ago
$605
Roundtrip
found 1 day ago
Select TAP Portugal flight, departing Sun, Jan 17 from Logan Intl. to Dr. Francisco de Sa Carneiro, returning Tue, Feb 2, priced at $605 found 1 day ago
Delta
Sun, Dec 13 - Wed, Feb 17
BOS
Logan Intl.
OPO
Dr. Francisco de Sa Carneiro
$713 Roundtrip, found 1 day ago
$713
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Dec 13 from Logan Intl. to Dr. Francisco de Sa Carneiro, returning Wed, Feb 17, priced at $713 found 1 day ago
TAP Portugal
Mon, Mar 22 - Tue, Mar 30
IAD
Washington Dulles Intl.
OPO
Dr. Francisco de Sa Carneiro
$721 Roundtrip, found 1 day ago
$721
Roundtrip
found 1 day ago
Select TAP Portugal flight, departing Mon, Mar 22 from Washington Dulles Intl. to Dr. Francisco de Sa Carneiro, returning Tue, Mar 30, priced at $721 found 1 day ago
United
Wed, Apr 7 - Tue, Apr 13
IND
Indianapolis Intl.
OPO
Dr. Francisco de Sa Carneiro
$722 Roundtrip, found 1 day ago
$722
Roundtrip
found 1 day ago
Select United flight, departing Wed, Apr 7 from Indianapolis Intl. to Dr. Francisco de Sa Carneiro, returning Tue, Apr 13, priced at $722 found 1 day ago
Swiss International Air Lines
Sun, Mar 21 - Mon, Mar 29
IAD
Washington Dulles Intl.
OPO
Dr. Francisco de Sa Carneiro
$725 Roundtrip, found 1 day ago
$725
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Sun, Mar 21 from Washington Dulles Intl. to Dr. Francisco de Sa Carneiro, returning Mon, Mar 29, priced at $725 found 1 day ago
British Airways
Tue, Feb 9 - Wed, Feb 24
BOS
Logan Intl.
OPO
Dr. Francisco de Sa Carneiro
$732 Roundtrip, found 1 day ago
$732
Roundtrip
found 1 day ago
Select British Airways flight, departing Tue, Feb 9 from Logan Intl. to Dr. Francisco de Sa Carneiro, returning Wed, Feb 24, priced at $732 found 1 day ago
Lufthansa
Mon, Jan 4 - Fri, Jan 22
BOS
Logan Intl.
OPO
Dr. Francisco de Sa Carneiro
$757 Roundtrip, found 1 day ago
$757
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Mon, Jan 4 from Logan Intl. to Dr. Francisco de Sa Carneiro, returning Fri, Jan 22, priced at $757 found 1 day ago
SATA International-Azores Airlines S.A.
Sat, Dec 12 - Tue, Dec 29
BOS
Logan Intl.
OPO
Dr. Francisco de Sa Carneiro
$780 Roundtrip, found 1 day ago
$780
Roundtrip
found 1 day ago
Select SATA International-Azores Airlines S.A. flight, departing Sat, Dec 12 from Logan Intl. to Dr. Francisco de Sa Carneiro, returning Tue, Dec 29, priced at $780 found 1 day ago
American Airlines
Mon, Mar 1 - Mon, Mar 15
BOS
Logan Intl.
OPO
Dr. Francisco de Sa Carneiro
$789 Roundtrip, found 5 days ago
$789
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Mar 1 from Logan Intl. to Dr. Francisco de Sa Carneiro, returning Mon, Mar 15, priced at $789 found 5 days ago
KLM
Sun, Dec 27 - Tue, Jan 12
BOS
Logan Intl.
OPO
Dr. Francisco de Sa Carneiro
$837 Roundtrip, found 1 day ago
$837
Roundtrip
found 1 day ago
Select KLM flight, departing Sun, Dec 27 from Logan Intl. to Dr. Francisco de Sa Carneiro, returning Tue, Jan 12, priced at $837 found 1 day ago
Turkish Airlines
Sun, Mar 21 - Mon, Mar 29
IAD
Washington Dulles Intl.
OPO
Dr. Francisco de Sa Carneiro
$842 Roundtrip, found 1 day ago
$842
Roundtrip
found 1 day ago
Select Turkish Airlines flight, departing Sun, Mar 21 from Washington Dulles Intl. to Dr. Francisco de Sa Carneiro, returning Mon, Mar 29, priced at $842 found 1 day ago
Air France
Tue, Mar 2 - Wed, May 5
BOS
Logan Intl.
OPO
Dr. Francisco de Sa Carneiro
$886 Roundtrip, found 1 day ago
$886
Roundtrip
found 1 day ago
Select Air France flight, departing Tue, Mar 2 from Logan Intl. to Dr. Francisco de Sa Carneiro, returning Wed, May 5, priced at $886 found 1 day ago
Brussels Airlines
Sun, Mar 21 - Mon, Mar 29
IAD
Washington Dulles Intl.
OPO
Dr. Francisco de Sa Carneiro
$980 Roundtrip, found 1 day ago
$980
Roundtrip
found 1 day ago
Select Brussels Airlines flight, departing Sun, Mar 21 from Washington Dulles Intl. to Dr. Francisco de Sa Carneiro, returning Mon, Mar 29, priced at $980 found 1 day ago
Air Canada
Tue, Jun 22 - Wed, Aug 25
BOS
Logan Intl.
OPO
Dr. Francisco de Sa Carneiro
$986 Roundtrip, found 1 day ago
$986
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Jun 22 from Logan Intl. to Dr. Francisco de Sa Carneiro, returning Wed, Aug 25, priced at $986 found 1 day ago
Iberia
Mon, Mar 1 - Mon, Mar 15
BOS
Logan Intl.
OPO
Dr. Francisco de Sa Carneiro
$1,018 Roundtrip, found 5 days ago
$1,018
Roundtrip
found 5 days ago
Select Iberia flight, departing Mon, Mar 1 from Logan Intl. to Dr. Francisco de Sa Carneiro, returning Mon, Mar 15, priced at $1,018 found 5 days ago
Delta
Wed, Mar 31 - Thu, Apr 1
PHX
Sky Harbor Intl.
OPO
Dr. Francisco de Sa Carneiro
$5,529 Roundtrip, found 1 day ago
$5,529
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Mar 31 from Sky Harbor Intl. to Dr. Francisco de Sa Carneiro, returning Thu, Apr 1, priced at $5,529 found 1 day ago

Cheap Nine Flights

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