CFR > Title 41 - Public Contracts and Property Management > SUBTITLE F—Federal Travel Regulation System > CHAPTER 301—TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES (parts 301-1 to 301-76) > SUBCHAPTER B—ALLOWABLE TRAVEL EXPENSES (parts 301-10 to 301-31) > PART 301-10—TRANSPORTATION EXPENSES > SUBPART B—Common Carrier Transportation (§301-10.100 to §301-10.190) > 301-10.139—May I travel by a foreign air carrier if the cost of my ticket is less than traveling by a U.S. flag air carrier?

301-10.139—May I travel by a foreign air carrier if the cost of my ticket is less than traveling by a U.S. flag air carrier?

No. Foreign air carrier service may not be used solely based on the cost of your ticket.