Flights from Washington to Idaho Falls

Cheapest flights from Washington

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.

Tue, Aug 5 - Tue, Aug 12

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$386 Roundtrip, found 20 hours ago

$386

Roundtrip

found 20 hours ago

Select Delta flight, departing Tue, Aug 5 from Ronald Reagan Washington National to Idaho Falls Regional, returning Tue, Aug 12, priced at $386 found 20 hours ago

Tue, Aug 5 - Sat, Aug 16

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$391 Roundtrip, found 20 hours ago

$391

Roundtrip

found 20 hours ago

Select Delta flight, departing Tue, Aug 5 from Ronald Reagan Washington National to Idaho Falls Regional, returning Sat, Aug 16, priced at $391 found 20 hours ago

Tue, Aug 5 - Thu, Aug 7

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$400 Roundtrip, found 20 hours ago

$400

Roundtrip

found 20 hours ago

Select Delta flight, departing Tue, Aug 5 from Ronald Reagan Washington National to Idaho Falls Regional, returning Thu, Aug 7, priced at $400 found 20 hours ago

Tue, Aug 5 - Thu, Aug 14

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$405 Roundtrip, found 20 hours ago

$405

Roundtrip

found 20 hours ago

Select Delta flight, departing Tue, Aug 5 from Ronald Reagan Washington National to Idaho Falls Regional, returning Thu, Aug 14, priced at $405 found 20 hours ago

Fri, Aug 8 - Tue, Aug 12

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$433 Roundtrip, found 20 hours ago

$433

Roundtrip

found 20 hours ago

Select Delta flight, departing Fri, Aug 8 from Ronald Reagan Washington National to Idaho Falls Regional, returning Tue, Aug 12, priced at $433 found 20 hours ago

Tue, Aug 5 - Wed, Aug 6

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$437 Roundtrip, found 20 hours ago

$437

Roundtrip

found 20 hours ago

Select Delta flight, departing Tue, Aug 5 from Ronald Reagan Washington National to Idaho Falls Regional, returning Wed, Aug 6, priced at $437 found 20 hours ago

Fri, Aug 8 - Sat, Aug 16

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$438 Roundtrip, found 20 hours ago

$438

Roundtrip

found 20 hours ago

Select Delta flight, departing Fri, Aug 8 from Ronald Reagan Washington National to Idaho Falls Regional, returning Sat, Aug 16, priced at $438 found 20 hours ago

Sat, Aug 9 - Sat, Aug 16

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$443 Roundtrip, found 20 hours ago

$443

Roundtrip

found 20 hours ago

Select Delta flight, departing Sat, Aug 9 from Ronald Reagan Washington National to Idaho Falls Regional, returning Sat, Aug 16, priced at $443 found 20 hours ago

Thu, Aug 7 - Sat, Aug 9

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$450 Roundtrip, found 20 hours ago

$450

Roundtrip

found 20 hours ago

Select American Airlines flight, departing Thu, Aug 7 from Ronald Reagan Washington National to Idaho Falls Regional, returning Sat, Aug 9, priced at $450 found 20 hours ago

Fri, Aug 8 - Thu, Aug 14

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$452 Roundtrip, found 20 hours ago

$452

Roundtrip

found 20 hours ago

Select Delta flight, departing Fri, Aug 8 from Ronald Reagan Washington National to Idaho Falls Regional, returning Thu, Aug 14, priced at $452 found 20 hours ago

Sat, Aug 9 - Thu, Aug 14

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$457 Roundtrip, found 20 hours ago

$457

Roundtrip

found 20 hours ago

Select Delta flight, departing Sat, Aug 9 from Ronald Reagan Washington National to Idaho Falls Regional, returning Thu, Aug 14, priced at $457 found 20 hours ago

Thu, Aug 7 - Sat, Aug 9

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$470 Roundtrip, found 20 hours ago

$470

Roundtrip

found 20 hours ago

Select American Airlines flight, departing Thu, Aug 7 from Ronald Reagan Washington National to Idaho Falls Regional, returning Sat, Aug 9, priced at $470 found 20 hours ago

Thu, Aug 7 - Sat, Aug 9

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$472 Roundtrip, found 20 hours ago

$472

Roundtrip

found 20 hours ago

Select American Airlines flight, departing Thu, Aug 7 from Ronald Reagan Washington National to Idaho Falls Regional, returning Sat, Aug 9, priced at $472 found 20 hours ago

Thu, Aug 7 - Sat, Aug 9

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$477 Roundtrip, found 20 hours ago

$477

Roundtrip

found 20 hours ago

Select American Airlines flight, departing Thu, Aug 7 from Ronald Reagan Washington National to Idaho Falls Regional, returning Sat, Aug 9, priced at $477 found 20 hours ago

Thu, Aug 7 - Sat, Aug 9

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$484 Roundtrip, found 20 hours ago

$484

Roundtrip

found 20 hours ago

Select American Airlines flight, departing Thu, Aug 7 from Ronald Reagan Washington National to Idaho Falls Regional, returning Sat, Aug 9, priced at $484 found 20 hours ago

Thu, Aug 7 - Tue, Aug 12

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$487 Roundtrip, found 20 hours ago

$487

Roundtrip

found 20 hours ago

Select Delta flight, departing Thu, Aug 7 from Ronald Reagan Washington National to Idaho Falls Regional, returning Tue, Aug 12, priced at $487 found 20 hours ago

Sat, Aug 9 - Fri, Aug 15

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$490 Roundtrip, found 20 hours ago

$490

Roundtrip

found 20 hours ago

Select American Airlines flight, departing Sat, Aug 9 from Ronald Reagan Washington National to Idaho Falls Regional, returning Fri, Aug 15, priced at $490 found 20 hours ago

Thu, Aug 7 - Sat, Aug 16

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$492 Roundtrip, found 20 hours ago

$492

Roundtrip

found 20 hours ago

Select Delta flight, departing Thu, Aug 7 from Ronald Reagan Washington National to Idaho Falls Regional, returning Sat, Aug 16, priced at $492 found 20 hours ago

Thu, Aug 7 - Sat, Aug 9

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$945 Roundtrip, found 20 hours ago

$945

Roundtrip

found 20 hours ago

Select United flight, departing Thu, Aug 7 from Ronald Reagan Washington National to Idaho Falls Regional, returning Sat, Aug 9, priced at $945 found 20 hours ago

Thu, Aug 7 - Sat, Aug 9

DCA

Ronald Reagan Washington National

IDA

Idaho Falls Regional

$1,105 Roundtrip, found 20 hours ago

$1,105

Roundtrip

found 20 hours ago

Select Alaska Airlines flight, departing Thu, Aug 7 from Ronald Reagan Washington National to Idaho Falls Regional, returning Sat, Aug 9, priced at $1,105 found 20 hours ago