United Flight UA4240 Deals & Information (2025/2026)

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United Flight 4240 Route Deals From $224

The cheapest prices found with in the last 7 days for return flights were $209 and $224 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 15 - Tue, Aug 26
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$209 Roundtrip, found 2 days ago
$209
Roundtrip
found 2 days ago
Select United flight, departing Fri, Aug 15 from Huntsville Intl. to Washington Dulles Intl., returning Tue, Aug 26, priced at $209 found 2 days ago
Fri, Aug 22 - Sun, Aug 24
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$214 Roundtrip, found 6 days ago
$214
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 22 from Huntsville Intl. to Washington Dulles Intl., returning Sun, Aug 24, priced at $214 found 6 days ago
Fri, Aug 15 - Tue, Aug 26
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$219 Roundtrip, found 2 days ago
$219
Roundtrip
found 2 days ago
Select United flight, departing Fri, Aug 15 from Huntsville Intl. to Washington Dulles Intl., returning Tue, Aug 26, priced at $219 found 2 days ago
Fri, Jun 20 - Wed, Jun 25
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$222 Roundtrip, found 6 days ago
$222
Roundtrip
found 6 days ago
Select United flight, departing Fri, Jun 20 from Huntsville Intl. to Washington Dulles Intl., returning Wed, Jun 25, priced at $222 found 6 days ago
Fri, Aug 29 - Tue, Sep 2
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$237 Roundtrip, found 4 days ago
$237
Roundtrip
found 4 days ago
Select United flight, departing Fri, Aug 29 from Huntsville Intl. to Washington Dulles Intl., returning Tue, Sep 2, priced at $237 found 4 days ago
Fri, Sep 12 - Mon, Sep 15
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$242 Roundtrip, found 6 days ago
$242
Roundtrip
found 6 days ago
Select United flight, departing Fri, Sep 12 from Huntsville Intl. to Washington Dulles Intl., returning Mon, Sep 15, priced at $242 found 6 days ago
Sat, Jun 14 - Mon, Jun 16
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$243 Roundtrip, found 2 days ago
$243
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jun 14 from Huntsville Intl. to Washington Dulles Intl., returning Mon, Jun 16, priced at $243 found 2 days ago
Sat, Jul 19 - Tue, Jul 22
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$244 Roundtrip, found 3 days ago
$244
Roundtrip
found 3 days ago
Select United flight, departing Sat, Jul 19 from Huntsville Intl. to Washington Dulles Intl., returning Tue, Jul 22, priced at $244 found 3 days ago
Fri, Aug 15 - Tue, Aug 26
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$247 Roundtrip, found 2 days ago
$247
Roundtrip
found 2 days ago
Select United flight, departing Fri, Aug 15 from Huntsville Intl. to Washington Dulles Intl., returning Tue, Aug 26, priced at $247 found 2 days ago
Tue, Jul 22 - Tue, Jul 29
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$249 Roundtrip, found 15 hours ago
$249
Roundtrip
found 15 hours ago
Select United flight, departing Tue, Jul 22 from Huntsville Intl. to Washington Dulles Intl., returning Tue, Jul 29, priced at $249 found 15 hours ago