Flights from Washington, D.C. to Chicago, IL

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Best Deals on Flights From Washington, D.C. (IAD) to Chicago, IL (ORD)

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Sep 2026
No results for this month.
Oct 2026
from$82*
Last seen: 6 hours ago
One-way/Economy
Nov 2026
from$108*
Last seen: 14 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $82
cmp-daily-histogram-bars-legend-max-price-aria-label $206
Displaying fares for September-2026
  • IAD–ORD: cmp-view-offers-disclaimer. Find Offers
    29

    Tue

    SEP

  • IAD–ORD: cmp-view-offers-disclaimer. Find Offers
    30

    Wed

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    01

    Thu

    OCT

  • IAD–ORD, Oct 2, 2026: from $200
    02

    Fri

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    03

    Sat

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    04

    Sun

  • IAD–ORD, Oct 5, 2026: from $200
    05

    Mon

  • IAD–ORD, Oct 6, 2026: from $193
    06

    Tue

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    07

    Wed

  • IAD–ORD, Oct 8, 2026: from $200
    08

    Thu

  • IAD–ORD, Oct 9, 2026: from $206
    09

    Fri

  • IAD–ORD, Oct 10, 2026: from $193
    10

    Sat

  • IAD–ORD: cmp-view-offers-disclaimer. Find Offers
    11

    Sun

  • IAD–ORD: cmp-view-offers-disclaimer. Find Offers
    12

    Mon

  • IAD–ORD, Oct 13, 2026: from $94
    13

    Tue

  • IAD–ORD: cmp-view-offers-disclaimer. Find Offers
    14

    Wed

  • IAD–ORD, Oct 15, 2026: from $176
    15

    Thu

  • IAD–ORD, Oct 16, 2026: from $182
    16

    Fri

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    17

    Sat

  • IAD–ORD, Oct 18, 2026: from $176
    18

    Sun

  • IAD–ORD, Oct 19, 2026: from $121
    19

    Mon

  • IAD–ORD: cmp-view-offers-disclaimer. Find Offers
    20

    Tue

  • IAD–ORD: cmp-view-offers-disclaimer. Find Offers
    21

    Wed

  • IAD–ORD, Oct 22, 2026: from $102
    22

    Thu

  • IAD–ORD: cmp-view-offers-disclaimer. Find Offers
    23

    Fri

  • IAD–ORD: cmp-view-offers-disclaimer. Find Offers
    24

    Sat

  • IAD–ORD: cmp-view-offers-disclaimer. Find Offers
    25

    Sun

  • IAD–ORD: cmp-view-offers-disclaimer. Find Offers
    26

    Mon

  • IAD–ORD, Oct 27, 2026: from $82
    27

    Tue

  • IAD–ORD: cmp-view-offers-disclaimer. Find Offers
    28

    Wed

    • Range$82-$206

    *Prices found by others in the previous 48 hours for round-trip flights. Prices shown may also require membership in our travel club, Discount Den.

    Flights Deals from Washington, D.C. to Chicago, IL on Frontier

    $
    Flights Deals from Washington, D.C. to Chicago, IL on Frontier
    From
    To
    Washington, D.C. (IAD)Chicago, IL (ORD)One-way
    /
    Discount Den Basic Fare    		Departing Mar 31, 2027

    From

    $188

    Last seen: 23 hours ago

    *Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.

    Washington, D.C. Chicago, IL

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