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.

Wed, Oct 15 - Sat, Oct 18
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$209 Roundtrip, found 3 days ago
$209
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 15 from Huntsville Intl. to Washington Dulles Intl., returning Sat, Oct 18, priced at $209 found 3 days ago
Thu, Oct 2 - Sun, Oct 5
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$213 Roundtrip, found 1 day ago
$213
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 2 from Huntsville Intl. to Washington Dulles Intl., returning Sun, Oct 5, priced at $213 found 1 day ago
Wed, Oct 15 - Sat, Oct 18
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$217 Roundtrip, found 3 days ago
$217
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 15 from Huntsville Intl. to Washington Dulles Intl., returning Sat, Oct 18, priced at $217 found 3 days ago
Sat, Oct 11 - Tue, Oct 14
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$221 Roundtrip, found 1 day ago
$221
Roundtrip
found 1 day ago
Select United flight, departing Sat, Oct 11 from Huntsville Intl. to Washington Dulles Intl., returning Tue, Oct 14, priced at $221 found 1 day ago
Thu, Sep 18 - Wed, Sep 24
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$224 Roundtrip, found 2 days ago
$224
Roundtrip
found 2 days ago
Select United flight, departing Thu, Sep 18 from Huntsville Intl. to Washington Dulles Intl., returning Wed, Sep 24, priced at $224 found 2 days ago
Thu, Oct 2 - Sun, Oct 5
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$237 Roundtrip, found 1 day ago
$237
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 2 from Huntsville Intl. to Washington Dulles Intl., returning Sun, Oct 5, priced at $237 found 1 day ago
Thu, Sep 18 - Wed, Sep 24
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$239 Roundtrip, found 2 days ago
$239
Roundtrip
found 2 days ago
Select United flight, departing Thu, Sep 18 from Huntsville Intl. to Washington Dulles Intl., returning Wed, Sep 24, priced at $239 found 2 days ago
Thu, Sep 18 - Wed, Sep 24
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$259 Roundtrip, found 2 days ago
$259
Roundtrip
found 2 days ago
Select United flight, departing Thu, Sep 18 from Huntsville Intl. to Washington Dulles Intl., returning Wed, Sep 24, priced at $259 found 2 days ago
Sat, Oct 11 - Tue, Oct 14
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$273 Roundtrip, found 1 day ago
$273
Roundtrip
found 1 day ago
Select United flight, departing Sat, Oct 11 from Huntsville Intl. to Washington Dulles Intl., returning Tue, Oct 14, priced at $273 found 1 day ago
Thu, Sep 18 - Wed, Sep 24
HSV
Huntsville Intl.
IAD
Washington Dulles Intl.
$275 Roundtrip, found 2 days ago
$275
Roundtrip
found 2 days ago
Select United flight, departing Thu, Sep 18 from Huntsville Intl. to Washington Dulles Intl., returning Wed, Sep 24, priced at $275 found 2 days ago