| https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/Status-Tracker-How-to-track-a-United-Airlines-flight.pdf |
| https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/Flight-Tracker-How-to-track-a-United-Airlines-flight.pdf |
| https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/Live-Tracker-How-to-track-a-United-Airlines-flight.pdf |
| https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/Live-Tracker-How-do-I-check-the-status-of-an-American-Airlines-flight.pdf |
| https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/Flight-Tracker-How-do-I-check-the-status-of-an-American-Airlines-flight.pdf |
