United Flight 1251 Deals & Information (2025/2026)

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United Flight 1251 Route Deals From $224

The cheapest prices found with in the last 7 days for return flights were $201 and $224 for one-way flights to Southwest Florida Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Nov 11 - Sat, Nov 15
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$201 Roundtrip, found 1 hour ago
$201
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Nov 11 from Washington Dulles Intl. to Southwest Florida Intl., returning Sat, Nov 15, priced at $201 found 1 hour ago
Sat, Nov 8 - Tue, Nov 11
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$204 Roundtrip, found 5 days ago
$204
Roundtrip
found 5 days ago
Select United flight, departing Sat, Nov 8 from Washington Dulles Intl. to Southwest Florida Intl., returning Tue, Nov 11, priced at $204 found 5 days ago
Wed, Jan 7 - Mon, Jan 12
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$205 Roundtrip, found 1 day ago
$205
Roundtrip
found 1 day ago
Select United flight, departing Wed, Jan 7 from Washington Dulles Intl. to Southwest Florida Intl., returning Mon, Jan 12, priced at $205 found 1 day ago
Thu, Oct 30 - Tue, Nov 4
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$209 Roundtrip, found 20 hours ago
$209
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Oct 30 from Washington Dulles Intl. to Southwest Florida Intl., returning Tue, Nov 4, priced at $209 found 20 hours ago
Mon, Jan 12 - Sat, Jan 17
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$210 Roundtrip, found 4 days ago
$210
Roundtrip
found 4 days ago
Select United flight, departing Mon, Jan 12 from Washington Dulles Intl. to Southwest Florida Intl., returning Sat, Jan 17, priced at $210 found 4 days ago
Tue, Nov 11 - Sat, Nov 15
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$211 Roundtrip, found 1 hour ago
$211
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Nov 11 from Washington Dulles Intl. to Southwest Florida Intl., returning Sat, Nov 15, priced at $211 found 1 hour ago
Thu, Oct 30 - Sun, Nov 2
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$213 Roundtrip, found 1 day ago
$213
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 30 from Washington Dulles Intl. to Southwest Florida Intl., returning Sun, Nov 2, priced at $213 found 1 day ago
Wed, Jan 14 - Sun, Jan 18
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$215 Roundtrip, found 1 day ago
$215
Roundtrip
found 1 day ago
Select United flight, departing Wed, Jan 14 from Washington Dulles Intl. to Southwest Florida Intl., returning Sun, Jan 18, priced at $215 found 1 day ago
Thu, Oct 30 - Tue, Nov 4
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$218 Roundtrip, found 20 hours ago
$218
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Oct 30 from Washington Dulles Intl. to Southwest Florida Intl., returning Tue, Nov 4, priced at $218 found 20 hours ago
Mon, Jan 12 - Sat, Jan 17
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$219 Roundtrip, found 4 days ago
$219
Roundtrip
found 4 days ago
Select United flight, departing Mon, Jan 12 from Washington Dulles Intl. to Southwest Florida Intl., returning Sat, Jan 17, priced at $219 found 4 days ago
Thu, Dec 4 - Mon, Dec 8
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$222 Roundtrip, found 1 hour ago
$222
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Dec 4 from Washington Dulles Intl. to Southwest Florida Intl., returning Mon, Dec 8, priced at $222 found 1 hour ago
Thu, Oct 30 - Tue, Nov 4
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$227 Roundtrip, found 5 days ago
$227
Roundtrip
found 5 days ago
Select United flight, departing Thu, Oct 30 from Washington Dulles Intl. to Southwest Florida Intl., returning Tue, Nov 4, priced at $227 found 5 days ago
Mon, Jan 12 - Sat, Jan 17
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$229 Roundtrip, found 4 days ago
$229
Roundtrip
found 4 days ago
Select United flight, departing Mon, Jan 12 from Washington Dulles Intl. to Southwest Florida Intl., returning Sat, Jan 17, priced at $229 found 4 days ago
Tue, Oct 7 - Sat, Oct 11
IAD
Washington Dulles Intl.
RSW
Southwest Florida Intl.
$232 Roundtrip, found 6 days ago
$232
Roundtrip
found 6 days ago
Select United flight, departing Tue, Oct 7 from Washington Dulles Intl. to Southwest Florida Intl., returning Sat, Oct 11, priced at $232 found 6 days ago

Frequently asked questions

What route does flight number UA1251 take?
UA1251 flies directly from BOS to O'Hare Intl. Airport (ORD). During this trip, you can expect to be in the air for approximately 2 hours and 47 minutes. It pays to book ahead to lock in your preferred seat.
What terminal does UA1251 fly out of?
Flight number UA1251 runs between Logan Intl. Airport (BOS) and O'Hare Intl. Airport (ORD), and travelers on this flight commonly depart from Terminal B.
What kind of plane is on flight number UA1251?
You're likely to be on the Boeing 737-800 if you're booked on flight number UA1251. Generally, this flight leaves from Logan Intl. Airport (BOS) and comes in to land at Chicago, IL Airport (ORD-O'Hare Intl.).
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA1251 flight with Travelocity, please visit our Customer Service Portal.